Spanish flu (Influenza A H1N1)1918-1920 | |
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| Total costs | N/A |
| Deaths | 1000000 |
Spanish flu, also known as the Great Influenza epidemic or the 1918 influenza pandemic, was an exceptionally deadly global influenza pandemic caused by the H1N1 influenza A virus. The earliest documented case was March 1918 in Kansas, United States, with further cases recorded in France, Germany and the United Kingdom in April. Two years later, nearly a third of the global population, or an estimated 500 million people, had been infected in four successive waves. Estimates of deaths range from 17 million to 50 million, and possibly as high as 100 million, making it one of the deadliest pandemics in human history. The name 'Spanish flu' is a misnomer, rooted in historical othering of infectious disease origin, which is now avoided. The pandemic broke out near the end of World War I, when wartime censors suppressed bad news in the belligerent countries to maintain morale, but newspapers freely reported the outbreak in neutral Spain. These stories created a false impression of Spain as the epicenter, so press outside Spain adopted the name 'Spanish' flu. Limited historical epidemiological data make the pandemic's geographic origin indeterminate, with competing hypotheses on the initial spread.Most influenza outbreaks disproportionately kill the young and old, with a higher survival rate in-between, but this pandemic had unusually high mortality for young adults. Scientists offer several explanations for the high mortality, including a six-year climate anomaly affecting migration of disease vectors with increased likelihood of spread through bodies of water. The virus was particularly deadly because it triggered a cytokine storm, ravaging the stronger immune system of young adults, although the viral infection was apparently no more aggressive than previous influenza strains. Malnourishment, overcrowded medical camps and hospitals, and poor hygiene, exacerbated by the war, promoted bacterial superinfection, killing most of the victims after a typically prolonged death bed.The 1918 Spanish flu was the first of three flu pandemics caused by H1N1 influenza A virus; the most recent one was the 2009 swine flu pandemic. The 1977 Russian flu was also caused by H1N1 virus, but it mostly affected younger populations. The ongoing pandemic of COVID-19, which began in December 2019 and is caused by SARS-CoV-2, is the deadliest respiratory virus pandemic since the Spanish flu.
Source: Wikipedia 1987 Black Dragon Fire | |
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| Total costs | N/A |
| Deaths | 191 |
The Black Dragon fire, also known as the 1987 Daxing'anling wildfire (Chinese: 大兴安岭特大森林火灾) or the May 6 fire (Chinese: 5·6大火) was a major wildfire that began in the northeast Daxing'anling Prefecture, Heilongjiang, People's Republic of China on May 6, 1987. It also spread into the Soviet Union. The burning lasted almost a month, when it was finally stopped on June 2, 1987. The fire covered about 10,000 km2 (2,500,000 acres) of which 6,500 km2 (2,500 sq mi) was forest; it destroyed 7.3 million hectares (18 million acres) of forest, including one-sixth of China's entire timber reserves. About 266 people were wounded and 211 died in the fire leaving 50,000 homeless. It was one of the largest wildfires ever to occur, and the largest to strike China in over 300 years.
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