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Jun 16, 2010 · This document seeks to document for the public the key events of the pandemic as they unfolded and CDC’s response. The following is a summary narrative of highlighted CDC-related events from the 2009 H1N1 pandemic. A Virus Emerges. 2009 H1N1 was first detected in the United States in April 2009.
The 1918 influenza pandemic was the most severe pandemic in recent history. It was caused by an H1N1 virus with genes of avian origin. Although there is not universal consensus regarding where the virus originated, it spread worldwide during 1918-1919. In the United States, it was first identified in military personnel in spring 1918.
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Jun 23, 2023 · The main swine influenza viruses circulating in U.S. pigs in recent years have been, swine triple reassortant (tr) H1N1 influenza virus, trH3N2 virus, and trH1N2 virus. Swine Flu Updates. CDC and Partners Work to Update Suggested Measures to Minimize Influenza Spread at Swine Exhibitions Monday, November 13, 2023.
Mar 23, 2023 · The Centers for Disease Control and Prevention (CDC) recommends annual flu vaccination for everyone age 6 months or older. The H1N1 virus is included in the seasonal flu vaccine. The flu vaccine can lower your risk of getting the flu. It also can lower the risk of having serious illness from the flu and needing to stay in the hospital.
Mar 23, 2023 · Centers for Disease Control and Prevention. https://www.cdc.gov/flu/prevent/index.html. Accessed Feb. 22, 2023. Frequently asked influenza (flu) questions: 2022-2023 season.
