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US influenza statistics by flu season. From the Centers for Disease Control and Prevention page called "Disease Burden of Flu": "Each year CDC estimates the burden of influenza in the U.S. CDC uses modeling to estimate the number of flu illnesses, medical visits, hospitalizations, and deaths related to flu that occurred in a given season.
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.
Influenza surveillance information on the 2009 H1N1 flu pandemic is available, but almost no studies attempted to estimate the total number of deaths attributable to H1N1 flu. Two studies were carried out by the CDC; the later of them estimated that between 7,070 and 13,930 deaths were attributable to H1N1 flu from April to 14 November 2009. [191]
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]
This is one of the worst annual flu death totals in children in a season, matching the 199 deaths during the 2019-2020 season. The highest number of deaths in children was 288 during the 2009-2010 ...
The proportion of US deaths due to pneumonia and influenza climbed above the epidemic threshold in the 2007–2008 winter flu season but not in the 2008–2009 season. Although the 2009 H1N1 outbreak reached epidemic levels of infection early in 2009, it did not contribute to epidemic levels of pneumonia and influenza related deaths until ...
The season’s death toll of 199 matches the 2019-20 flu season, CDC said. The highest death toll recorded was 288 children who died from the flu in the 2009-10 season, at the height of the H1N1 ...
The 2023-2024 flu season was "moderately severe," and caused an estimated 40 million illnesses and 28,000 deaths, per the CDC. "Last year, we had over 200 pediatric deaths from flu, that was a ...