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Avian influenza, also known as avian flu or bird flu, is a disease caused by the influenza A virus, which primarily affects birds but can sometimes affect mammals including humans. [1] Wild aquatic birds are the primary host of the influenza A virus, which is enzootic (continually present) in many bird populations.
On August 9, the Colorado Department of Public Health reported bird flu in domestic cats, including indoor-only cats. [90] In late August, H5N1 had spread to dairy cow herds in California. [91] On August 22, the first person in the U.S. who didn't work with poultry or dairy cows was hospitalized with the H5 influenza virus.
Avian influenza virus H3N2 is endemic in pigs ("swine flu") in China and has been detected in pigs in Vietnam, increasing fears of the emergence of new variant strains. Health experts say pigs can carry human influenza viruses, which can combine (i.e. exchange homologous genome sub-units by genetic reassortment ) with H5N1 , passing genes and ...
Influenza A virus subtype H5N1 (A/H5N1) is a subtype of the influenza A virus, which causes the disease avian influenza (often referred to as "bird flu"). It is enzootic (maintained in the population) in many bird populations, and also panzootic (affecting animals of many species over a wide area). [ 1 ]
H5 N2 is a subtype of the species Influenzavirus A (avian influenza virus or bird flu virus). The subtype infects a wide variety of birds, including chickens, ducks, turkeys, falcons, and ostriches. Affected birds usually do not appear ill, and the disease is often mild as avian influenza viral subtypes go.
The virus saw over 7,000 birds succumbing to the virus. As a result, the company, culled over 140,000 birds to prevent the spread of the virus. [20] Even though a ban on all avian products from Zimbabwe was issued, on 22 June an outbreak [21] [22] was reported at a commercial broiler poultry farm outside Villiers, South Africa after 5,000 ...
Avian flu virus can last indefinitely at a temperature dozens of degrees below freezing, as is found in the northernmost areas that migratory birds frequent. [citation needed] Heat kills H5N1 (i.e. inactivates the virus). Influenza A viruses can survive: Over 30 days at 0 °C (32.0 °F) (over one month at freezing temperature)
To unambiguously describe a specific isolate of virus, researchers use the Influenza virus nomenclature, [27] which describes, among other things, the subtype, year, and place of collection. Some examples include: [28] A/Rio de Janeiro/62434/2021 (H3N2). [28] The starting A indicates that the virus is an influenza A virus.