2023年3月23日 · 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.

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. You can treat it with rest, fluids and antiviral medications. What is swine flu (H1N1)?

Influenza A virus subtype H1N1 (A/H1N1) is a subtype of influenza A virus (IAV). Some human-adapted strains of H1N1 are endemic in humans and are one cause of seasonal influenza (flu). [1] Other strains of H1N1 are endemic in pigs (swine influenza) and in birds (avian influenza). [2]

2023年5月16日 · WebMD explains the H1N1 flu virus (swine flu), what causes it, and its symptoms, tests, treatments, and prevention.

Before the H1N1 pandemic in 2009, the influenza A (H1N1) virus had never been identified as a cause of infections in people. Genetic analyses of this virus have shown that it originated from animal influenza viruses and is unrelated to the human seasonal H1N1 viruses that have been in general circulation among people since 1977.

This is an H1N1 factsheet created for the general public containing important facts regarding symptoms, seasonal vs. H1N1 inoformation, and steps to be taken to prevent the spread of the virus. Program: Community Health. Submitted Date: Oct 15, 2009 | Modified Date: Mar 06, 2025.

Influenza A H1N1, virus that is best known for causing widespread outbreaks, including epidemics and pandemics, of acute upper or lower respiratory tract infection. The influenza A H1N1 virus is a member of the family Orthomyxoviridae (a group of RNA …

The influenza type A virus, known as H1N1 is a respiratory infection that was popularly named “swine flu.” The virus was first recognized in April 2009 and spread quickly to 74 countries worldwide. The World Health Organization (WHO) declared the virus a global pandemic.

2020年9月8日 · H1N1 influenza, a subtype of influenza A virus, is an infectious viral illness that causes both upper and, in some cases, lower respiratory tract infections in its host.

Influenza A (H1N1) (referred to as “swine flu” early on) is a new influenza virus. This virus is spreading from person- to-person, probably in much the same way that regular seasonal influenza viruses spread. Is this new H1N1 virus contagious? Yes, however, at this time, it is not known how easily the virus spreads between people.