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A follow-up study done in September 2010 showed that the risk of serious illness resulting from the 2009 H1N1 flu was no higher than that of the yearly seasonal flu. [120] For comparison, the CDC estimates the global H1N1 death toll at 284,000 and the WHO estimates that 250,000 to 500,000 people die of seasonal flu annually. [121]
The United States experienced the beginnings of a pandemic of a novel strain of the influenza A/H1N1 virus, commonly referred to as "swine flu", in the spring of 2009.The earliest reported cases in the US began appearing in late March 2009 in California, [114] then spreading to infect people in Texas, New York, and other states by mid-April. [115]
The influenza virus has caused several pandemic threats over the past century, including the pseudo-pandemic of 1947 (thought of as mild because although globally distributed, it caused relatively few deaths), [209] the 1976 swine flu outbreak and the 1977 Russian flu, all caused by the H1N1 subtype. [209]
Flu deaths in children reached a concerning high during the 2023-2024 season. Most of the children who died weren’t vaccinated against the virus. ... the height of the H1N1 swine flu pandemic. ...
CHICAGO — Health officials in Chicago confirmed the city’s first pediatric seasonal flu-related deaths of 2025 this week. According to officials from the Chicago Department of Public Health ...
Dr. José Ángel Córdova Villalobos, Mexico's Secretariat of Health, stated that since March 2009, there have been over 1,995 suspected cases and 149 deaths, with 20 confirmed to be linked to a new swine influenza strain of Influenza A virus subtype H1N1.
RSV in particular is bad this year because most children typically get the virus before the age of 2, Russo explains. But, with COVID-19 prevention measures over the past few years, many children ...
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