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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.
This is a timeline of influenza, briefly describing major events such as outbreaks, epidemics, pandemics, discoveries and developments of vaccines.In addition to specific year/period-related events, there is the seasonal flu that kills between 250,000 and 500,000 people every year and has claimed between 340 million and 1 billion human lives throughout history.
In a typical year, influenza viruses infect 5–15% of the global population, [3] [62] causing 3–5 million cases of severe illness annually [1] [2] and accounting for 290,000–650,000 deaths each year due to respiratory illness. [3] [4] [67] 5–10% of adults and 20–30% of children contract influenza each year. [23]
Flu-related deaths topped deaths from COVID-19 for the first time since the pandemic began. ... Brull told USA TODAY flu deaths could triple from last year. Why are flu cases surging?
Some years the flu shot offers more protection than other years. ... note that the CDC estimates that the flu has resulted in between 100,000 and 710,000 hospitalizations and up to 51,000 deaths ...
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.
Flu activity remains low for the 2022-2023 season due to COVID-19 prevention efforts. But how many people die from the flu each year? Doctors explain.
The Asian Flu was a pandemic outbreak of H2N2 avian influenza that originated in China in 1957, spread worldwide that same year during which an influenza vaccine was developed, lasted until 1958 and caused between one and four million deaths.