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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. [2] [3]
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]
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)
Influenza A virus (IAV) is the only species of the genus Alphainfluenzavirus of the virus family Orthomyxoviridae. [1] It is a pathogen with strains that infect birds and some mammals, as well as causing seasonal flu in humans. [2]
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 ...
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.
Because of that, both avian and mammalian influenza viruses can infect pigs. If co-infection occurs, reassortment is possible. [20] A notable example of this was the reassortment of a swine, avian, and human influenza virus that caused the 2009 flu pandemic. [20] [4] Spillover events from humans to pigs appear to be more common than from pigs ...
The outbreak killed 50,000 birds, with the remaining 1,200 birds in the flock being culled, according to a report from the Agriculture Ministry. [20] Afghanistan reported an outbreak of H5N8 bird flu on a poultry farm in Herat Province on 25 February. The outbreak killed 794 birds, while the remaining 22,000-strong flock were subsequently ...