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For a given epidemic or pandemic, the average of its estimated death toll range is used for ranking. If the death toll averages of two or more epidemics or pandemics are equal, then the smaller the range, the higher the rank. For the historical records of major changes in the world population, see world population. [3]
The 1889–1890 pandemic, often referred to as the Asiatic flu [57] or Russian flu, killed about 1 million people [58] [59] out of a world population of about 1.5 billion. It was long believed to be caused by an influenza A subtype (most often H2N2), but recent analysis largely brought on by the 2002-2004 SARS outbreak and the COVID-19 pandemic ...
Hungary reported the first death in the country on 22 July. [296] Ireland reported its first death on 7 August. [297] As of 19 August, all European countries with the exception of the micro states San Marino and Vatican City had reported cases. [citation needed]
The most recent flu pandemic was the 2009 swine flu pandemic, which originated in Mexico and resulted in hundreds of thousands of deaths. [34] It was caused by a novel H1N1 strain that was a reassortment of human, swine, and avian influenza viruses.
Crude mortality rate refers to the number of deaths over a given period divided by the person-years lived by the population over that period. It is usually expressed in units of deaths per 1,000 individuals per year. The list is based on CIA World Factbook 2023 estimates, unless indicated otherwise.
The cost of a flu season in lives lost, medical expenses and economic impact can be severe. In 2017, the World Health Organization (WHO) estimated that the seasonal flu causes 290,000 to 650,000 annual deaths worldwide. [31] In 2003, the WHO estimated that the cost of flu epidemics in the United States was US$71–167 billion per year. [32]
Such deaths are sometimes evaluated via excess deaths per capita – the COVID-19 pandemic deaths between January 1, 2020, and December 31, 2021, are estimated to be ~18.2 million. Research could help distinguish the proportions directly caused by COVID-19 from those caused by indirect consequences of the pandemic.
The estimates of the total death toll due to Hong Kong flu (from its beginning in July 1968 until the outbreak faded during the winter of 1969–70 [187]) vary: The World Health Organization and Encyclopaedia Britannica estimated the number of deaths due to Hong Kong flu to be between 1 and 4 million globally. [1] [28]