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This has led to speculation that the Spanish flu pandemic originated in China, [192] [193] as the lower rates of flu mortality may be explained by the Chinese population's previously acquired immunity to the flu virus. [176] [192] In the Guangdong Province it was reported that early outbreaks of influenza in 1918 disproportionately impacted ...
Human infectious diseases may be characterized by their case fatality rate (CFR), the proportion of people diagnosed with a disease who die from it (cf. mortality rate).It should not be confused with the infection fatality rate (IFR), the estimated proportion of people infected by a disease-causing agent, including asymptomatic and undiagnosed infections, who die from the disease.
H5N1 influenza virus is a type of influenza A virus which mostly infects birds. H5N1 flu is a concern because its global spread may constitute a pandemic threat. The yardstick for human mortality from H5N1 is the case-fatality rate (CFR); the ratio of the number of confirmed human deaths resulting from infection of H5N1 to the number of those confirmed cases of infection with the virus.
The CFR for the Spanish (1918) flu was greater than 2.5%, while the Asian (1957-58) and Hong Kong (1968-69) flus both had a CFR of about 0.2%. [ 11 ] [ 12 ] [ 13 ] As of 24 Feb 2025, coronavirus disease 2019 has an overall CFR of 0.91%, although the CFRs of earlier strains of COVID-19 was around 2%, the CFRs for original SARS and MERS are about ...
Epidemics and pandemics with at least 1 million deaths Rank Epidemics/pandemics Disease Death toll Percentage of population lost Years Location 1 1918 Flu: Influenza A/H1N1: 17–100 million 1–5.4% of global population [4] 1918–1920 Worldwide 2 Plague of Justinian: Bubonic plague 15–100 million 25–60% of European population [5] 541–549
Death rates have also ticked up among older adults in some regions, but far below the COVID pandemic peak. Spain’s government has reinstated mask-wearing requirements at healthcare facilities ...
The 1918–1920 flu pandemic is commonly referred to as the Spanish flu, and caused millions of deaths worldwide. To maintain morale, wartime censors minimized early reports of illness and mortality in Germany , the United Kingdom , France , and the United States .
There were about 500 deaths last season from the flu by this point in time, and 600 the year before, the Mercury News reported. Chin-Hong estimates he hasn't seen a death toll like that of this ...