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The first reports of bird flu in India came from the village of Navapur in the Nandurbar district of Maharashtra on 19 February 2006. Villagers reported many bird deaths in the village. Maharashtra State Animal Husbandry Ministry authorities rushed to the spot. Lab analysis proved that the poultry was indeed affected with the H5N1 virus ...
The virus can spread rapidly through poultry flocks and among wild birds. [3] An estimated half billion farmed birds have been slaughtered in efforts to contain the virus. [2] Symptoms of A/H5N1 influenza vary according to both the strain of virus underlying the infection and on the species of bird or mammal affected.
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.
The concerning bird flu outbreak that has spread to four humans so far as it expands quickly in the U.S. has jumped to dozens of species, infecting mammals in at least 31 states.
The bird flu outbreak has expanded to 31 states and jumped to dozens of species, including nine mammals in Oregon that tested positive for the H5NI virus since 2022.
Infected birds pass on H5N1 through their saliva, nasal secretions, and feces. Other birds may pick up the virus through direct contact with these excretions or when they have contact with surfaces contaminated with this material. Because migratory birds are among the carriers of the H5N1 virus it may spread to all parts of the world.
After months of more mild cases, the bird flu appears to be ramping up: The U.S. just saw its first death from the virus, and cases have been found in birds across all 50 states, according to the ...
The other genes can and have been reassorted from other subtypes of the bird flu species (their ease at exchanging genes is part of what makes them all one species). Evolution by reassortment of H5N1 from 1999 to 2002 created the Z genotype which became the dominant strain of highly pathogenic H5N1 in 2004 and is now spreading across the entire ...