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  2. 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 swine flu and was a new combination of influenza viruses that infect pigs, birds and humans. The World Health Organization (WHO) declared the H1N1 flu to be a pandemic in ...

  3. May 16, 2023 · Fever. Sore throat. Stuffy or runny nose. Body aches. Headache. Chills. Fatigue. Like the regular flu, swine flu can lead to more serious problems including pneumonia, a lung infection, and other ...

  4. Swine flu (H1N1) is an infection that a type of flu (influenza) virus causes. It’s called swine flu because it’s similar to a flu virus that affects pigs (swine). The virus leads to a lung (respiratory) disease in pigs. Swine flu (H1N1) is a respiratory infection in humans. Cleveland Clinic is a non-profit academic medical center.

  5. Mar 8, 2019 · When it first emerged, swine flu was most common in children 5 years and older and young adults. This was unusual because most flu virus infections are a higher risk for complications in older ...

    • Lydia Krause
  6. Swine flu viruses cause high levels of illness and low death rates in pigs. Swine influenza viruses may circulate among swine throughout the year, but most outbreaks occur during the late fall and winter months similar to outbreaks in humans. The classical swine flu virus (an influenza type A H1N1 virus) was first isolated from a pig in 1930.

  7. Mar 12, 2020 · Swine flu, or H1N1, moved from pigs to people in 2009 and caused a pandemic. ... In 2009, the H1N1 variant became widespread in humans for the first time. ... Steps for managing swine flu symptoms ...

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