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Wednesday, May 27, 2020

Protests over responses to the COVID-19 pandemic

From Wikipedia, the free encyclopedia
 
There have been protests and demonstrations around the world against responses to the ongoing COVID-19 pandemic by governmental bodies, and these protests have also drawn pushback from those who think the government mandates and lockdowns are justified. Some forms of protests have been compared to the Anti-Mask League of San Francisco movement that was seen during the 1918 pandemic. Various strikes have also occurred.

Africa

Ivory Coast

Protesters have destroyed a coronavirus testing center that was being built in Abidjan, which they said was in a crowded residential area too close to their homes.

Kenya

The Kenyan government has been accused of extreme measures, with protestors accusing the Kenyan Police of killing at least six people within the first 10 days of the lockdown. Others protested against the forced quarantine of individuals failing to comply with regulations or returning home from abroad, claiming that they had been quarantined for longer than 14 days and made to pay the government for their care.

Malawi

A Malawi high court temporary barred the government from implementing a 21-day lockdown after it was challenged by the Human Rights Defenders Coalition, after it was argued that more consultation was need to prevent harm to the poorest and most vulnerable. Small protests had been staged prior to the ruling, in at least three major cities with some protestors stating it was better to contract the virus then die of hunger due to lack of work.

Nigeria

A group of at least twenty coronavirus patients forced their way out of an isolation facility to protests against alleged improper care and the governments actions which they believed to worsen their conditions. Workers at a construction site rioted against lockdown measures that limited their ability to work on constructing an oil refinery for billionaire Aliko Dangote.

Rwanda

Refugees that had been relocated to the country from an overcrowded refugee camp in Libya, protested against the lockdown from the refugee camp in the capital Kigali.

South Africa

Many residents protested against the policy that food parcel aid would only be going to households that earn below R3600, and demanded action from the South African Social Security Agency. Surfers have also protested to be allowed to surf during the lockdown, that allows exercise but not water activities.

Asia

China

Protest against plans to set up designated coronavirus clinics near residential areas in Hong Kong on 15 February 2020

Small shop owners protested the continuation of rent charges outside of the Grand Ocean Department Store in Wuhan, chanting "Exempt rental for a year, or refund the lease". Videos from the demonstration were posted in the social media platform Sina Weibo but quickly censored.[10] A woman was arrested and facing criminal charges after attempting to rally about 100 people to protest the poor management and overpriced provisions during the lockdown. She has been charged with "picking quarrels and provoking trouble" an offense normally used to detain dissidents and social activists.

Pakistan

Dozens of doctors were arrested in Quetta after protesting the lack of safety equipment that they had been given to battle the spread of the disease. Hundreds of laborers protested against their forced layoffs due to the pandemic by gathering outside their old places of work throughout the city of Karachi.

Parents of students who had been studying abroad in the Chinese province of Hubei protested against the governments decision to leave the children in the area in February 2020.

India

After the televised announcement by Prime Minister Narendra Modi that the lockdown was to be extended until at least 3 May, police used batons to disperse protesting migrant workers in Mumbai. Thousands of jobless migrant workers had gathered at railway stations and were demanding to be allowed to break the lockdown to return home. Similar protests were seen in other parts of the country by the workers, and those who claimed that they received no aid which was promised by the government to provide them during the lockdown period.

Israel

Thousands of Israelis engaged in social distancing while gathering to protest against the believed anti-democratic measures in the country by Prime Minister Benjamin Netanyahu. Many were involved in the Black Flag movement which had been allowed to protest by police if they stood six feet apart and all wore masks. An earlier protest had seen the protesters drive to Jerusalem to protest anti-democratic measures. Other demonstrations have been seen in the ultra-Orthodox Jerusalem neighborhood of Mea Shearim with men and youths throwing rocks at police before being arrested.[18]

Iraq

Protests against the lockdown have been coupled with the ongoing protests against the current government and the female based violence within the country.

Lebanon

Many protesters argued for monetary relief from the countries slumping economy after weeks of the lockdown. At least one demonstrator died after soldiers used tear gas, batons, and live bullets to disperse a protesters in Tripoli who were throwing molotov cocktails. Protesters also congregated in Beirut outside the central bank and threw rocks at the building, and took over major roads as they claimed there wasn't enough done to protect the economy and those that would suffer the most economically.

Europe

France

The Paris suburb, has seen riots since a 18 April incident in which a motorcyclist crashed into an open unmarked police vehicle, which have grown from heavy-handed policing but have grown to include issues about lockdown policies. Many have reported that in poorer neighborhoods the policies are difficult to follow due to over crowding and cause the neighborhoods to be impacted more than wealthier Parisians. The demonstrations have since been seen in the suburb Hauts-de-Seine, and other French cities Toulouse, Lyon and Strasbourg.

Germany

Protest in Kreuzberg, on 1 May 2020

Around 1,000 people gathered in Berlin near the Volksbühne theater, and hundreds of others protested in Stuttgart on 26 April, for the fourth consecutive Saturday of protests. They were protesting against government lockdown measures and handed out newspapers questioning the need for the lockdown and claiming the pandemic was an attempt to seize power through fear. More than 100 anti-lockdown protesters were arrested in central Berlin on 26 April.

Italy

Catholic clergy in Italy took to posting video messages in response to the lockdown policies and the re-opening policies that have been slowly introduced in Italy as the pandemic infection rates have decreased. Giovanni D'Ercole, bishop of Ascoli Piceno in the Marche region, claimed in a video that the inability for religious institutions to hold services outside of funerals was like a dictatorship.

Poland

Hundreds of protesters gathered in the Polish border town of Zgorzelec to protest the lockdown regulations, the protest was staged specifically on the foot bridge connecting Zgorzelec and the German town of Gorlitz as many lived in Poland but worked in Germany. Many protested the inability to cross the borders of the countries as they lived in a different country from where they worked, and similar protests were seen in border towns along the Polish-German border and the Polish-Czech border.

Russia

Security forces broke up a crowd of about 2,000 individuals protesting against the lockdown in Vladikavkaz, with some detained and the believed organizer arrested prior to the event. Some protesters at the event used their social media to post videos about their demands against the lockdown, with one stating; "Today, under the pretext of the coronavirus, which doesn't exist, people are driven into slavery, they are trying to establish total control over all us all."

Spain

Thousands of people, mostly supporters of the far-right party Vox, attended protests in Madrid and the country's regional capitals over the lockdown and its impact on the Spanish economy. The protestors drove in convoys to adhere to social distancing, with the Madrid protest lead by a bus containing Vox leader Santiago Abascal. Abascal called for the current government to resign over its handling of the virus.

United Kingdom

Around 20 people, which included young children, protested and defied social-distancing rules outside the Metropolitan Police headquarters.

About 50 anti-lockdown and anti-vax protesters defied social-distancing rules at Speakers' Corner in Hyde Park, including Piers Corbyn - the brother of former Labour Leader Jeremy Corbyn - who was arrested. There was further smaller protests on same day in Manchester, Cardiff, Glasgow and Belfast and other cities across the country.

North America

Canada

An anti-lockdown protest at Queen's Park, Toronto, on 25 April 2020
 
Anti-lockdown protest in Vancouver, British Columbia, on 3 May 2020
 
In Canada, American imitation protests began 19 April in Vancouver. Protests also occurred in Toronto, Edmonton, and Ottawa.

On 21 April it was reported that prisoners at the Saskatchewan Penitentiary had been protesting against restrictions placed upon them in response to COVID-19.

United States

The COVID-19 pandemic arrived in the United States in early 2020. In the United States there was no centralized national response to the pandemic. Beginning in mid-March various social distancing measures to limit spread of the virus were undertaken by individual state governors and in some cases counties or cities. Actions taken included Stay-at-home orders ("quarantine"), school and business closures, and limitation on the size of gatherings. By 7 April, 42 states had lockdown orders orders in place. The shutdowns had serious economic effects, including a steep rise in unemployment due to the shutdown of stores and workplaces. By 15 April protests and demonstrations had broken out in some states, demanding that the area be "re-opened" for normal business and personal activity. By 1 May there had been demonstrations in more than half of the states, and many governors began to take steps to lift the restrictions.

Ohio protesters April 18
Ohio protesters April 20
Ohio protesters April 18
Ohio protesters April 20
Several hundred anti-lockdown protesters rallied at the Ohio Statehouse April 20.
 
One of the first protests was in Michigan on 15 April 2020, organized by conservative groups which also encouraged groups in other states to copy their wording and templates. Protesters in numerous other states said they were inspired by Michigan, and they used Michigan's material on their own websites, Facebook groups, and Reddit pages to promote their protests. Subsequent protests were organized by Republican activists or party organizations, Tea Party activists, armed militia movement supporters, guns-rights activists, and "anti-vaccination" advocates.

Protesters opposed the shelter-in-place orders in their states for various reasons. Many said they want businesses reopened so they can go back to work. Many others displayed pro-Trump banners, signs, and MAGA hats. Still others insisted the lockdowns were a violation of their constitutional rights. One militia leader told a reporter, "Re-open my state or we will re-open it ourselves." The anger driving the protests was called "both real and manufactured", with conservative groups engaging in Astroturfing via centralized organization backed by anonymous donors.

President Trump originally issued guidelines for how to phase out restrictions, saying that governors would decide how to reopen their own states and suggesting a cautious three-phase approach. However, the next day he reacted to the protests against social restrictions by encouraging the protests. Governor Jay Inslee (D-WA) accused the president of "fomenting domestic rebellion" and said the president's call to ignore his own team's guidelines was "schizophrenic".

Facebook announced that it would block events and messages from anti-quarantine protest groups "when gatherings do not follow the health parameters established by the government and are therefore unlawful".

In California, Libertarian Party chapters in Santa Clara and San Francisco counties condemned lockdown measures in the state with a resolution stating in part that, "these government impositions have already lasted for longer than could be justified by the purpose for which they were allegedly necessary, constituting a sort of "mission creep" that could potentially keep them in place with no definite end, and with economic and social damage continuing to accumulate and becoming more severe."

Cell phone data from digital-contact tracing software suggests that leaders and attendees at anti-lockdown protests in Colorado, Florida, Michigan and North Carolina were responsible for spreading COVID-19 "far and wide" and that merely attending rallies represents a "high risk of infection."

Oceania

Australia

On Anzac Day (26 April) Australia's first anti-lockdown protests mimicking the ones in the US and Germany occurred in the rural town of Trafalgar, Victoria.

On Mother's Day (9 May) around 100 to 300 protesters picketed against the lockdown and vaccinations outside Victoria's Parliament House in Melbourne. Protesters defied social-distancing restrictions and violent scenes ensued.

South America

Brazil

On 18 March, Brazilians in São Paulo and Rio de Janeiro protested Jair Bolsonaro's handling of the pandemic by banging pots and pans on their balconies and shouting "Bolsonaro out!"

On 19 April, Brazil's Armed Forces Day, Bolsonaro gathered with about 600 protesters in front of the Army's headquarters in Brasilia to demand a "military intervention" into the handling of the coronavirus situation. Smaller protests calling for governors to resign occurred the previous day in Rio de Janeiro, São Paulo and Brasilia.

Chile

On 18 March, riots took place at the communes of El Bosque, La Pintana, and other communes in Santiago Metropolitan Region. Rioters are denouncing the hunger resulting from the partial and total lockdowns in the region. They claim that the lockdowns have left them without work and means of sustenance.

Spanish flu

From Wikipedia, the free encyclopedia
 
Spanish flu
Soldiers from Fort Riley, Kansas, ill with Spanish flu at a hospital ward at Camp Funston
Soldiers from Fort Riley, Kansas, ill with "Spanish" flu at a hospital ward at Camp Funston
DiseaseInfluenza
Virus strainStrains of the A/H1N1
LocationWorldwide
First outbreakDisputed
Datespring 1918 – spring/summer 1919
Confirmed cases500 million (estimate)
Deaths
17–50+ million (estimate)

The Spanish flu, also known as the 1918 flu pandemic, was an unusually deadly influenza pandemic caused by the H1N1 influenza A virus. Lasting about 15 months from spring 1918 (northern hemisphere) to early summer 1919, it infected 500 million people – about a third of the world's population at the time. The death toll is estimated to have been anywhere from 17 million to 50 million, and possibly as high as 100 million, making it one of the deadliest pandemics in human history.

To maintain morale, World War I censors minimized early reports of illness and mortality in Germany, the United Kingdom, France, and the United States. Newspapers were free to report the epidemic's effects in neutral Spain, such as the grave illness of King Alfonso XIII, and these stories created a false impression of Spain as especially hard hit. This gave rise to the name "Spanish" flu. Historical and epidemiological data are inadequate to identify with certainty the pandemic's geographic origin, with varying views as to its location.

Most influenza outbreaks disproportionately kill the very young and the very old, with a higher survival rate for those in between, but the Spanish flu pandemic resulted in a higher than expected mortality rate for young adults. Scientists offer several possible explanations for the high mortality rate of the 1918 influenza pandemic. Some analyses have shown the virus to be particularly deadly because it triggers a cytokine storm, which ravages the stronger immune system of young adults. In contrast, a 2007 analysis of medical journals from the period of the pandemic found that the viral infection was no more aggressive than previous influenza strains. Instead, malnourishment, overcrowded medical camps and hospitals, and poor hygiene, all exacerbated by the recent war, promoted bacterial superinfection. This superinfection killed most of the victims, typically after a somewhat prolonged death bed.

The 1918 Spanish flu was the first of two pandemics caused by H1N1 influenza A virus; the second was the 2009 swine flu pandemic.

Etymology

Despite its name, historical and epidemiological data cannot identify the geographic origin of the Spanish flu.

The origin of the "Spanish flu" name stems from the pandemic's spread to Spain from France in November 1918. Spain was not involved in the war, having remained neutral, and had not imposed wartime censorship. Newspapers were therefore free to report the epidemic's effects, such as the grave illness of King Alfonso XIII, and these widely-spread stories created a false impression of Spain as especially hard hit.

Nearly a century after the Spanish flu struck in 1918–1920, the World Health Organization (WHO) called on scientists, national authorities and the media to follow best practices in naming new human infectious diseases to minimize unnecessary negative effects on nations, economies and people. More modern terms for this virus include the "1918 influenza pandemic," the "1918 flu pandemic," or variations of these.

History

Hypotheses about the source

Europe

The major UK troop staging and hospital camp in Étaples in France has been theorized by virologist John Oxford as being at the center of the Spanish flu. His study found that in late 1916 the Étaples camp was hit by the onset of a new disease with high mortality that caused symptoms similar to the flu. According to Oxford, a similar outbreak occurred in March 1917 at army barracks in Aldershot, and military pathologists later recognized these early outbreaks as the same disease as the 1918 flu. The overcrowded camp and hospital was an ideal environment for the spread of a respiratory virus. The hospital treated thousands of victims of poison gas attacks, and other casualties of war, and 100,000 soldiers passed through the camp every day. It also was home to a piggery, and poultry was regularly brought in from surrounding villages to feed the camp. Oxford and his team postulated that a precursor virus, harbored in birds, mutated and then migrated to pigs kept near the front.

A report published in 2016 in the Journal of the Chinese Medical Association found evidence that the 1918 virus had been circulating in the European armies for months and possibly years before the 1918 pandemic. Political scientist Andrew Price-Smith published data from the Austrian archives suggesting the influenza began in Austria in early 1917.

United States

Some have suggested that the epidemic originated in the United States. Historian Alfred W. Crosby stated in 2003 that the flu originated in Kansas, and popular author John M. Barry described a January 1918 outbreak in Haskell County, Kansas, as the point of origin in his 2004 article.

A 2018 study of tissue slides and medical reports led by evolutionary biology professor Michael Worobey found evidence against the disease originating from Kansas, as those cases were milder and had fewer deaths compared to the infections in New York City in the same time period. The study did find evidence through phylogenetic analyses that the virus likely had a North American origin, though it was not conclusive. In addition, the haemagglutinin glycoproteins of the virus suggest that it originated long before 1918, and other studies suggest that the reassortment of the H1N1 virus likely occurred in or around 1915.

China

One of the few regions of the world seemingly less affected by the 1918 flu pandemic was China, where several studies have documented a comparatively mild flu season in 1918. (Although this is disputed due to lack of data during the Warlord Period). This has led to speculation that the 1918 flu pandemic originated in China, as the lower rates of flu mortality may be explained by the Chinese population's previously acquired immunity to the flu virus.

In 1993, Claude Hannoun, the leading expert on the 1918 flu at the Pasteur Institute, asserted the precursor virus was likely to have come from China. It then mutated in the United States near Boston and from there spread to Brest, France, Europe's battlefields, the rest of Europe, and the rest of the world, with Allied soldiers and sailors as the main disseminators. Hannoun considered several alternative hypotheses of origin, such as Spain, Kansas, and Brest, as being possible, but not likely.

In 2014, historian Mark Humphries argued that the mobilization of 96,000 Chinese laborers to work behind the British and French lines might have been the source of the pandemic. Humphries, of the Memorial University of Newfoundland in St. John's, based his conclusions on newly unearthed records. He found archival evidence that a respiratory illness that struck northern China in November 1917 was identified a year later by Chinese health officials as identical to the Spanish flu.

A report published in 2016 in the Journal of the Chinese Medical Association found no evidence that the 1918 virus was imported to Europe via Chinese and Southeast Asian soldiers and workers and instead found evidence of its circulation in Europe before the pandemic. The 2016 study suggested that the low flu mortality rate (an estimated 1/1000) found among the Chinese and Southeast Asian workers in Europe meant that the deadly 1918 influenza pandemic could not have originated from those workers.

A 2018 study of tissue slides and medical reports led by evolutionary biology professor Michael Worobey found evidence against the disease being spread by Chinese workers, noting that workers entered Europe through other routes that did not result in detectable spread, making them unlikely to have been the original hosts.

Spread

As U.S. troops deployed en masse for the war effort in Europe, they carried the Spanish flu with them.

When an infected person sneezes or coughs, more than half a million virus particles can spread to those nearby. The close quarters and massive troop movements of World War I hastened the pandemic, and probably both increased transmission and augmented mutation. The war may also have reduced people's resistance to the virus. Some speculate the soldiers' immune systems were weakened by malnourishment, as well as the stresses of combat and chemical attacks, increasing their susceptibility.

A large factor in the worldwide occurrence of this flu was increased travel. Modern transportation systems made it easier for soldiers, sailors, and civilian travelers to spread the disease. Another was lies and denial by governments, leaving the population ill-prepared to handle the outbreaks.

In the United States, the disease was first observed in Haskell County, Kansas, in January 1918, prompting local doctor Loring Miner to warn the US Public Health Service's academic journal. On 4 March 1918, company cook Albert Gitchell, from Haskell County, reported sick at Fort Riley, a US military facility that at the time was training American troops during World War I, making him the first recorded victim of the flu. Within days, 522 men at the camp had reported sick. By 11 March 1918, the virus had reached Queens, New York. Failure to take preventive measures in March/April was later criticised.

In August 1918, a more virulent strain appeared simultaneously in Brest, France; in Freetown, Sierra Leone; and in the U.S., in September, at the Boston Navy Yard and Camp Devens (later renamed Fort Devens), about 30 miles west of Boston. Other U.S. military sites were soon afflicted, as were troops being transported to Europe. The Spanish flu also spread through Ireland, carried there by returning Irish soldiers.

Mortality

Around the globe

Difference between the influenza mortality age-distributions of the 1918 epidemic and normal epidemics – deaths per 100,000 persons in each age group, United States, for the interpandemic years 1911–1917 (dashed line) and the pandemic year 1918 (solid line)
 
Three pandemic waves: weekly combined influenza and pneumonia mortality, United Kingdom, 1918–1919
 
The Spanish flu infected around 500 million people, about one-third of the world's population. Estimates as to how many infected people died vary greatly, but the flu is regardless considered to be one of the deadliest pandemics in history.

An estimate from 1991 states that the virus killed between 25 and 39 million people. A 2005 estimate put the death toll at 50 million (about 3% of the global population), and possibly as high as 100 million (more than 5%). However, a reassessment in 2018 estimated the total to be about 17 million, though this has been contested. With a world population of 1.8 to 1.9 billion, these estimates correspond to between 1 and 6 percent of the population. 

This flu killed more people in 24 weeks than HIV/AIDS killed in 24 years. However, it killed a much lower percentage of the world's population than the Black Death, which lasted for many more years.

The disease killed in many parts of the world. Some 12-17 million people died in India, about 5% of the population. The death toll in India's British-ruled districts was 13.88 million. Arnold (2019) estimates at least 12 million dead.

Estimates for the death toll in China have varied widely, a range which reflects the lack of centralised collection of health data at the time due to the Warlord period. The first estimate of the Chinese death toll was made in 1991 by Patterson and Pyle, which estimated China had a death toll of between 5 and 9 million. However, this 1991 study was subsequently criticized by later studies due to flawed methodology, and newer studies have published estimates of a far lower mortality rate in China. For instance, Iijima in 1998 estimates the death toll in China to be between 1 and 1.28 million based on data available from Chinese port cities. As Wataru Iijima notes,
Patterson and Pyle in their study 'The 1918 Influenza Pandemic' tried to estimate the number of deaths by Spanish influenza in China as a whole. They argued that between 4.0 and 9.5 million people died in China, but this total was based purely on the assumption that the death rate there was 1.0–2.25 per cent in 1918, because China was a poor country similar to Indonesia and India where the mortality rate was of that order. Clearly their study was not based on any local Chinese statistical data.
The lower estimates of the Chinese death toll are based on the low mortality rates that were found in Chinese port cities (for example, Hong Kong) and on the assumption that poor communications prevented the flu from penetrating the interior of China. However, some contemporary newspaper and post office reports, as well as reports from missionary doctors, suggest that the flu did penetrate the Chinese interior and that influenza was severe in at least some locations in the countryside of China.

In Japan, 23 million people were affected, with at least 390,000 reported deaths. In the Dutch East Indies (now Indonesia), 1.5 million were assumed to have died among 30 million inhabitants. In Tahiti, 13% of the population died during one month. Similarly, in Western Samoa 22% of the population of 38,000 died within two months.

In New Zealand, the flu killed an estimated 6,400 Pakeha and 2,500 indigenous Maori in six weeks, with Māori dying at eight times the rate of Pakeha.

In South Africa it is estimated that about 300,000 people amounting to 6% of the population died within six weeks. Government actions in the early stages of the virus' arrival in the country in September 1918 are believed to have unintentionally accelerated its spread throughout the country. 

In Iran, the mortality was very high: according to an estimate, between 902,400 and 2,431,000, or 8% to 22% of the total population died.

In the U.S., about 28% of the population of 105 million became infected, and 500,000 to 850,000 died (0.48 to 0.81 percent of the population). Native American tribes were particularly hard hit. In the Four Corners area, there were 3,293 registered deaths among Native Americans. Entire Inuit and Alaskan Native village communities died in Alaska. In Canada, 50,000 died.

In Brazil, 300,000 died, including president Rodrigues Alves. In Britain, as many as 250,000 died; in France, more than 400,000.

In Ghana, the influenza epidemic killed at least 100,000 people. Tafari Makonnen (the future Haile Selassie, Emperor of Ethiopia) was one of the first Ethiopians who contracted influenza but survived. Many of his subjects did not; estimates for fatalities in the capital city, Addis Ababa, range from 5,000 to 10,000, or higher. In British Somaliland, one official estimated that 7% of the native population died.

This huge death toll resulted from an extremely high infection rate of up to 50% and the extreme severity of the symptoms, suspected to be caused by cytokine storms. Symptoms in 1918 were unusual, initially causing influenza to be misdiagnosed as dengue, cholera, or typhoid. One observer wrote, "One of the most striking of the complications was hemorrhage from mucous membranes, especially from the nose, stomach, and intestine. Bleeding from the ears and petechial hemorrhages in the skin also occurred". The majority of deaths were from bacterial pneumonia, a common secondary infection associated with influenza. The virus also killed people directly by causing massive hemorrhages and edema in the lungs.

Patterns of fatality

A nurse wears a cloth mask while treating a patient in Washington, DC
 
Seattle police wearing masks in December 1918
 
The pandemic mostly killed young adults. In 1918–1919, 99% of pandemic influenza deaths in the U.S. occurred in people under 65, and nearly half of deaths were in young adults 20 to 40 years old. In 1920, the mortality rate among people under 65 had decreased sixfold to half the mortality rate of people over 65, but 92% of deaths still occurred in people under 65. This is unusual, since influenza is typically most deadly to weak individuals, such as infants under age two, adults over age 70, and the immunocompromised. In 1918, older adults may have had partial protection caused by exposure to the 1889–1890 flu pandemic, known as the "Russian flu".

According to historian John M. Barry, the most vulnerable of all – "those most likely, of the most likely", to die – were pregnant women. He reported that in thirteen studies of hospitalized women in the pandemic, the death rate ranged from 23% to 71%. Of the pregnant women who survived childbirth, over one-quarter (26%) lost the child.

Another oddity was that the outbreak was widespread in the summer and autumn (in the Northern Hemisphere); influenza is usually worse in winter.

Alberta's provincial board of health poster

Modern analysis has shown the virus to be particularly deadly because it triggers a cytokine storm (overreaction of the body's immune system), which ravages the stronger immune system of young adults. One group of researchers recovered the virus from the bodies of frozen victims and transfected animals with it. The animals suffered rapidly progressive respiratory failure and death through a cytokine storm. The strong immune reactions of young adults were postulated to have ravaged the body, whereas the weaker immune reactions of children and middle-aged adults resulted in fewer deaths among those groups.

In fast-progressing cases, mortality was primarily from pneumonia, by virus-induced pulmonary consolidation. Slower-progressing cases featured secondary bacterial pneumonia, and possibly neural involvement that led to mental disorders in some cases. Some deaths resulted from malnourishment. 

A study conducted by He et al. (2011) used a mechanistic modeling approach to study the three waves of the 1918 influenza pandemic. They examined the factors that underlie variability in temporal patterns and their correlation to patterns of mortality and morbidity. Their analysis suggests that temporal variations in transmission rate provide the best explanation, and the variation in transmission required to generate these three waves is within biologically plausible values.

Another study by He et al. (2013) used a simple epidemic model incorporating three factors to infer the cause of the three waves of the 1918 influenza pandemic. These factors were school opening and closing, temperature changes throughout the outbreak, and human behavioral changes in response to the outbreak. Their modeling results showed that all three factors are important, but human behavioral responses showed the most significant effects.

A 2020 study found that US cities that implemented early and extensive non-medical measures (quarantine etc.) suffered no additional adverse economic effects due to implementing those measures, when compared with cities that implemented measures late or not at all.

Deadly second wave

American Expeditionary Force victims of the Spanish flu at U.S. Army Camp Hospital no. 45 in Aix-les-Bains, France, in 1918

The second wave of the 1918 pandemic was much more deadly than the first. The first wave had resembled typical flu epidemics; those most at risk were the sick and elderly, while younger, healthier people recovered easily. By August, when the second wave began in France, Sierra Leone, and the United States, the virus had mutated to a much more deadly form. October 1918 was the month with the highest fatality rate of the whole pandemic.

This increased severity has been attributed to the circumstances of the First World War. In civilian life, natural selection favors a mild strain. Those who get very ill stay home, and those mildly ill continue with their lives, preferentially spreading the mild strain. In the trenches, natural selection was reversed. Soldiers with a mild strain stayed where they were, while the severely ill were sent on crowded trains to crowded field hospitals, spreading the deadlier virus. The second wave began, and the flu quickly spread around the world again. Consequently, during modern pandemics, health officials pay attention when the virus reaches places with social upheaval (looking for deadlier strains of the virus).

The fact that most of those who recovered from first-wave infections had become immune showed that it must have been the same strain of flu. This was most dramatically illustrated in Copenhagen, which escaped with a combined mortality rate of just 0.29% (0.02% in the first wave and 0.27% in the second wave) because of exposure to the less-lethal first wave. For the rest of the population, the second wave was far more deadly; the most vulnerable people were those like the soldiers in the trenches – adults who were young and fit.

Third wave 1919

In January 1919 a third wave of the Spanish Flu hit Australia, then spread quickly through Europe and the United States, where it lingered through the Spring and until June 1919. It primarily affected Spain, Serbia, Mexico and Great Britain, resulting in hundreds of thousands of deaths. It was less severe than the second wave but still much more deadly than the initial first wave. In the United States, isolated outbreaks occurred in some cities including Los Angeles, New York City, Memphis, Nashville, San Francisco and St. Louis. Overall American mortality rates were in the tens of thousands during the first six months of 1919.

Fourth wave 1920

In spring 1920 a very minor fourth wave occurred in isolated areas including New York City, the United Kingdom, Austria, Scandinavia, and some South American islands. Mortality rates were very low.

Devastated communities

A chart of deaths from all causes in major cities, showing a peak in October and November 1918
 
Coromandel Hospital Board (New Zealand) advice to influenza sufferers (1918)
 
Even in areas where mortality was low, so many adults were incapacitated that much of everyday life was hampered. Some communities closed all stores or required customers to leave orders outside. There were reports that healthcare workers could not tend the sick nor the gravediggers bury the dead because they too were ill. Mass graves were dug by steam shovel and bodies buried without coffins in many places.

Several Pacific island territories were hit particularly hard. The pandemic reached them from New Zealand, which was too slow to implement measures to prevent ships, such as the SS Talune, carrying the flu from leaving its ports. From New Zealand, the flu reached Tonga (killing 8% of the population), Nauru (16%), and Fiji (5%, 9,000 people).

Worst affected was Western Samoa, formerly German Samoa, which had been occupied by New Zealand in 1914. 90% of the population was infected; 30% of adult men, 22% of adult women, and 10% of children died. By contrast, Governor John Martin Poyer prevented the flu from reaching neighboring American Samoa by imposing a blockade. The disease spread fastest through the higher social classes among the indigenous peoples, because of the custom of gathering oral tradition from chiefs on their deathbeds; many community elders were infected through this process.

In New Zealand, 8,573 deaths were attributed to the 1918 pandemic influenza, resulting in a total population fatality rate of 0.7%. Māori were 8 to 10 times as likely to die as other New Zealanders (Pakeha) because of their more crowded living conditions.

In Ireland, the Spanish flu accounted for 10% of the total deaths in 1918.

Less-affected areas

China may have experienced a relatively mild flu season in 1918 compared to other areas of the world. However, there was no centralised collection of health statistics in the country at the time, and some reports from its interior suggest that mortality rates from influenza were perhaps higher in at least a few locations in China in 1918. However, at the very least, there is little evidence that China as a whole was seriously affected by the flu compared to other countries in the world. Although medical records from China's interior are lacking, there was extensive medical data recorded in Chinese port cities, such as then British-controlled Hong Kong, Canton, Peking, Harbin and Shanghai. This data was collected by the Chinese Maritime Customs Service, which was largely staffed by non-Chinese foreigners, such as the British, French, and other European colonial officials in China. As a whole, accurate data from China's port cities show astonishingly low mortality rates compared to other cities in Asia. For example, the British authorities at Hong Kong and Canton reported a mortality rate from influenza at a rate of 0.25% and 0.32%, much lower than the reported mortality rate of other cities in Asia, such as Calcutta or Bombay, where influenza was much more devastating. Similarly, in the city of Shanghai – which had a population of over 2 million in 1918 – there were only 266 recorded deaths from influenza among the Chinese population in 1918. If extrapolated from the extensive data recorded from Chinese cities, the suggested mortality rate from influenza in China as a whole in 1918 was likely lower than 1% – much lower than the world average (which was around 3–5%). In contrast, Japan and Taiwan had reported a mortality rate from influenza around 0.45% and 0.69% respectively, higher than the mortality rate collected from data in Chinese port cities, such as Hong Kong (0.25%), Canton (0.32%), and Shanghai.

1919 Tokyo, Japan

In Japan, 257,363 deaths were attributed to influenza by July 1919, giving an estimated 0.4% mortality rate, much lower than nearly all other Asian countries for which data are available. The Japanese government severely restricted sea travel to and from the home islands when the pandemic struck.

In the Pacific, American Samoa and the French colony of New Caledonia also succeeded in preventing even a single death from influenza through effective quarantines. In Australia, nearly 12,000 perished.

By the end of the pandemic, the isolated island of Marajó, in Brazil's Amazon River Delta had not reported an outbreak. Saint Helena also reported no deaths.

The death toll in Russia has been estimated at 450,000, though the epidemiologists who suggested this number called it a "shot in the dark". If it is correct, Russia lost roughly 0.4% of its population, meaning it suffered the lowest influenza-related mortality in Europe. Another study considers this number unlikely, given that the country was in the grip of a civil war, and the infrastructure of daily life had broken down; the study suggests that Russia's death toll was closer to 2%, or 2.7 million people.

Aspirin poisoning

In a 2009 paper published in the journal Clinical Infectious Diseases, Karen Starko proposed that aspirin poisoning contributed substantially to the fatalities. She based this on the reported symptoms in those dying from the flu, as reported in the post mortem reports still available, and also the timing of the big "death spike" in October 1918. This occurred shortly after the Surgeon General of the U.S. Army and the Journal of the American Medical Association both recommended very large doses of 8 to 31 grams of aspirin per day as part of treatment. These levels will produce hyperventilation in 33% of patients, as well as lung edema in 3% of patients.

Starko also notes that many early deaths showed "wet", sometimes hemorrhagic lungs, whereas late deaths showed bacterial pneumonia. She suggests that the wave of aspirin poisonings was due to a "perfect storm" of events: Bayer's patent on aspirin expired, so many companies rushed in to make a profit and greatly increased the supply; this coincided with the Spanish flu; and the symptoms of aspirin poisoning were not known at the time.

A street car conductor in Seattle in 1918 refusing to allow passengers aboard who are not wearing masks
 
As an explanation for the universally high mortality rate, this hypothesis was questioned in a letter to the journal published in April 2010 by Andrew Noymer and Daisy Carreon of the University of California, Irvine, and Niall Johnson of the Australian Commission on Safety and Quality in Health Care. They questioned the universal applicability of the aspirin theory, given the high mortality rate in countries such as India, where there was little or no access to aspirin at the time, compared to the death rate in places where aspirin was plentiful.

They concluded that "the salicylate [aspirin] poisoning hypothesis [was] difficult to sustain as the primary explanation for the unusual virulence of the 1918–1919 influenza pandemic". In response, Starko said there was anecdotal evidence of aspirin use in India and argued that even if aspirin over-prescription had not contributed to the high Indian mortality rate, it could still have been a factor for high rates in areas where other exacerbating factors present in India played less of a role.

End of the pandemic

After the lethal second wave struck in late 1918, new cases dropped abruptly – almost to nothing after the peak in the second wave. In Philadelphia, for example, 4,597 people died in the week ending 16 October, but by 11 November, influenza had almost disappeared from the city. One explanation for the rapid decline in the lethality of the disease is that doctors became more effective in prevention and treatment of the pneumonia that developed after the victims had contracted the virus. However, John Barry stated in his 2004 book The Great Influenza: The Epic Story of the Deadliest Plague In History that researchers have found no evidence to support this position. Some fatal cases did continue into March 1919, killing one player in the 1919 Stanley Cup Finals

Another theory holds that the 1918 virus mutated extremely rapidly to a less lethal strain. This is a common occurrence with influenza viruses: there is a tendency for pathogenic viruses to become less lethal with time, as the hosts of more dangerous strains tend to die out.

Long-term effects

A 2006 study in the Journal of Political Economy found that "cohorts in utero during the pandemic displayed reduced educational attainment, increased rates of physical disability, lower income, lower socioeconomic status, and higher transfer payments received compared with other birth cohorts." A 2018 study found that the pandemic reduced educational attainment in populations.

The flu has been linked to the outbreak of encephalitis lethargica in the 1920s.

Legacy

American Red Cross nurses tend to flu patients in temporary wards set up inside Oakland Municipal Auditorium, 1918.
 
Academic Andrew Price-Smith has made the argument that the virus helped tip the balance of power in the latter days of the war towards the Allied cause. He provides data that the viral waves hit the Central Powers before the Allied powers and that both morbidity and mortality in Germany and Austria were considerably higher than in Britain and France.

Despite the high morbidity and mortality rates that resulted from the epidemic, the Spanish flu began to fade from public awareness over the decades until the arrival of news about bird flu and other pandemics in the 1990s and 2000s. This has led some historians to label the Spanish flu a "forgotten pandemic".

There are various theories of why the Spanish flu was "forgotten". The rapid pace of the pandemic, which, for example, killed most of its victims in the United States within less than nine months, resulted in limited media coverage. The general population was familiar with patterns of pandemic disease in the late 19th and early 20th centuries: typhoid, yellow fever, diphtheria and cholera all occurred near the same time. These outbreaks probably lessened the significance of the influenza pandemic for the public. In some areas, the flu was not reported on, the only mention being that of advertisements for medicines claiming to cure it.

Additionally, the outbreak coincided with the deaths and media focus on the First World War. Another explanation involves the age group affected by the disease. The majority of fatalities, from both the war and the epidemic, were among young adults. The number of war-related deaths of young adults may have overshadowed the deaths caused by flu.

When people read the obituaries, they saw the war or postwar deaths and the deaths from the influenza side by side. Particularly in Europe, where the war's toll was high, the flu may not have had a tremendous psychological impact or may have seemed an extension of the war's tragedies. The duration of the pandemic and the war could have also played a role. The disease would usually only affect a particular area for a month before leaving. The war, however, had initially been expected to end quickly but lasted for four years by the time the pandemic struck. 

1918 influenza epidemic burial site in Auckland, New Zealand

With regard to global economic effects, many businesses in the entertainment and service industries suffered losses in revenue, while the healthcare industry reported profit gains. Historian Nancy Bristow has argued that the pandemic, when combined with the increasing number of women attending college, contributed to the success of women in the field of nursing. This was due in part to the failure of medical doctors, who were predominantly men, to contain and prevent the illness. Nursing staff, who were mainly women, celebrated the success of their patient care and did not associate the spread of the disease with their work.

In Spain, sources from the period explicitly linked the Spanish flu to the cultural figure of Don Juan. The nickname for the flu, the "Naples Soldier", was adopted from Federico Romero and Guillermo Fernández Shaw's 1916 operetta, The Song of Forgetting (La canción del olvido). The protagonist of the operetta was a stock Don Juan type. Federico Romero, one of the librettists, quipped that the play's most popular musical number, Naples Soldier, was as catchy as the flu. Davis argued the Spanish flu–Don Juan connection allowed Spaniards to make sense of their epidemic experience by interpreting it through their familiar Don Juan story.

Research

An electron micrograph showing recreated 1918 influenza virions
 
At the Centers for Disease Control and Prevention, Terrence Tumpey examines a reconstructed version of the 1918 flu.

The origin of the Spanish flu pandemic, and the relationship between the near-simultaneous outbreaks in humans and swine, have been controversial. One hypothesis is that the virus strain originated at Fort Riley, Kansas, in viruses in poultry and swine which the fort bred for food; the soldiers were then sent from Fort Riley around the world, where they spread the disease. Similarities between a reconstruction of the virus and avian viruses, combined with the human pandemic preceding the first reports of influenza in swine, led researchers to conclude the influenza virus jumped directly from birds to humans, and swine caught the disease from humans.

Others have disagreed, and more recent research has suggested the strain may have originated in a nonhuman, mammalian species. An estimated date for its appearance in mammalian hosts has been put at the period 1882–1913. This ancestor virus diverged about 1913–1915 into two clades (or biological groups), which gave rise to the classical swine and human H1N1 influenza lineages. The last common ancestor of human strains dates to between February 1917 and April 1918. Because pigs are more readily infected with avian influenza viruses than are humans, they were suggested as the original recipients of the virus, passing the virus to humans sometime between 1913 and 1918.

An effort to recreate the 1918 flu strain (a subtype of avian strain H1N1) was a collaboration among the Armed Forces Institute of Pathology, the USDA ARS Southeast Poultry Research Laboratory, and Mount Sinai School of Medicine in New York City. The effort resulted in the announcement (on 5 October 2005) that the group had successfully determined the virus's genetic sequence, using historic tissue samples recovered by pathologist Johan Hultin from an Inuit female flu victim buried in the Alaskan permafrost and samples preserved from American soldiers Roscoe Vaughan and James Downs.

On 18 January 2007, Kobasa et al. (2007) reported that monkeys (Macaca fascicularis) infected with the recreated flu strain exhibited classic symptoms of the 1918 pandemic, and died from cytokine storms – an overreaction of the immune system. This may explain why the 1918 flu had its surprising effect on younger, healthier people, as a person with a stronger immune system would potentially have a stronger overreaction.

On 16 September 2008, the body of British politician and diplomat Sir Mark Sykes was exhumed to study the RNA of the flu virus in efforts to understand the genetic structure of modern H5N1 bird flu. Sykes had been buried in 1919 in a lead coffin which scientists hoped had helped preserve the virus. The coffin was found to be split and the cadaver badly decomposed; nonetheless, samples of lung and brain tissue were taken.

In December 2008, research by Yoshihiro Kawaoka of the University of Wisconsin linked the presence of three specific genes (termed PA, PB1, and PB2) and a nucleoprotein derived from 1918 flu samples to the ability of the flu virus to invade the lungs and cause pneumonia. The combination triggered similar symptoms in animal testing.

In June 2010, a team at the Mount Sinai School of Medicine reported the 2009 flu pandemic vaccine provided some cross-protection against the 1918 flu pandemic strain.

One of the few things known for certain about the influenza in 1918 and for some years after was that it was, except in the laboratory, exclusively a disease of human beings.

In 2013, the AIR Worldwide Research and Modeling Group "characterized the historic 1918 pandemic and estimated the effects of a similar pandemic occurring today using the AIR Pandemic Flu Model". In the model, "a modern day 'Spanish flu' event would result in additional life insurance losses of between US$15.3–27.8 billion in the United States alone", with 188,000–337,000 deaths in the United States.

In 2018, Michael Worobey, an evolutionary biology professor at the University of Arizona who is examining the history of the 1918 pandemic, revealed that he obtained tissue slides created by William Rolland, a physician who reported on a respiratory illness likely to be the virus while a pathologist in the British military during World War One. Rolland had authored an article in the Lancet during 1917 about a respiratory illness outbreak beginning in 1916 in Étaples, France. Worobey traced recent references to that article to family members who had retained slides that Rolland had prepared during that time. Worobey extracted tissue from the slides to potentially reveal more about the origin of the pathogen.

Representation of a Lie group

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