If transmission causes human illness, it is called a zoonotic swine flu. People with regular exposure to pigs are at increased risk of swine flu infections. Around the mid-20th century, the identification of …

Jul 8, 2024 · Swine influenza is a respiratory disease of pigs caused by type A influenza viruses that regularly cause outbreaks of influenza in pigs. Influenza viruses that commonly circulate in swine are …

Aug 5, 2022 · 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).

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 …

Jul 6, 2025 · The H1N1 virus (swine flu) is an infection of the nose, throat, and lungs. It is caused by the H1N1 influenza virus.

Apr 30, 2025 · WebMD explains the H1N1 flu virus (swine flu), what causes it, and its symptoms, tests, treatments, and prevention.

Get the facts on swine flu (swine influenza A H1N1 virus) history, symptoms, how this contagious infection is transmitted, prevention with a vaccine, diagnosis, treatment, news, and research.

Nov 17, 2025 · The H1N1 flu, also known as the swine flu, is a type of influenza A virus. A new strain began circulating during the 2009–2010 flu season. Here’s what you need to know.

Jul 30, 2025 · Swine influenza is an upper respiratory disease of pigs caused by type A influenza viruses (IAV). Symptoms of infection may include difficulty breathing, loss of appetite, and weight loss, …

Jan 11, 2024 · H1N1, sometimes known as swine flu, can affect both pigs and humans. Swine flu is a respiratory disease that results from an influenza A virus. It can cause flu-like symptoms, which may...