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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]
Influenza A (H1N1) outbreak. Overview. Before the H1N1 pandemic in 2009, the influenza A (H1N1) virus had never been identified as a cause of infections in people.
8 wrz 2020 · 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. H1N1 influenza infections can cause symptoms such as rhinorrhea, cough, decreased appetite, fever, rigors, myalgia, headache, and, possibly, lower respiratory tract disease and ...
23 mar 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.
Influenza A (H1N1) is an acute respiratory infectious disease caused by mutant influenza A virus subtype H1N1. The pathogen is a new virus emerging after virus gene recombination of swine influenza, avian influenza, and human influenza.
19 cze 2010 · As of 27 June, worldwide more than 214 countries and overseas territories or communities have reported laboratory confirmed cases of pandemic influenza H1N1 2009, including over 18239 deaths.
3 paź 2023 · Currently circulating in humans are subtype A(H1N1) and A(H3N2) influenza viruses. The A(H1N1) is also written as A(H1N1)pdm09 as it caused the pandemic in 2009 and replaced the previous A(H1N1) virus which had circulated prior to 2009.
