Mar 23, 2023 · The H1N1 flu, sometimes called swine flu, is a type of influenza A virus. During the 2009-10 flu season, a new H1N1 virus began causing illness in humans. It was often called …

As of 2009, identified SIV strains include influenza C and the subtypes of influenza A known as H1N1, H1N2, H2N1, H3N1, H3N2, and H2N3. [3] The swine influenza virus is common …

May 16, 2023 · WebMD explains the H1N1 flu virus (swine flu), what causes it, and its symptoms, tests, treatments, and prevention.

Swine flu (H1N1) is a type of viral infection. It’s called swine flu because it resembles a respiratory infection that pigs can get. In 2009, an H1N1 pandemic infected millions of people worldwide. …

Mar 23, 2023 · Find out more about flu caused by the H1N1 virus. Learn how to prevent and treat the flu.

Jul 8, 2024 · Like human influenza viruses, there are different subtypes and strains of swine influenza viruses. The main swine influenza viruses circulating in U.S. pigs in recent years …

Mar 22, 2024 · H1N1 swine viruses have been known to circulate among pig populations since at least 1930. H3N2 influenza viruses did not begin circulating among pigs in the United States …

Mar 8, 2019 · Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs but is spread …

Jun 27, 2024 · For example, if a swine influenza A(H3N2) virus is found in a person, that virus will be called an "H3N2 variant" virus (abbreviated as "H3N2v" virus). These viruses are …

Sep 8, 2020 · A pandemic variant of H1N1, known as "swine flu," emerged from the recombination of various prior swine, avian, and human influenza strains, causing a global …