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Sunday, October 23, 2011

Various Kinds of Avian Influenza


Forms of Disease
LPAIV-Low Pathogenic Avian Influenza Viruses-|
HPAIV-highly pathogenic avian Influenza Viruses-

HPAIV

Found in poultry, is transmitted from poultry to poultry. after have mutations in other animals he attacked the new variant, and the type of HPAIV

LPAIV


Found when the species of poultry affected by the virus involved LPAIV in several cycles of transmission. Strain experienced a series of mutations that adapt to the
its host.Ex: Influenza A virus subtype H5N1









Why is H5N1 Dangerous?
Influenza A virus subtypes H5 and H7 not only through a phase of adaptation with the host but can also
changed the bolt, through the insertion mutation into a form that highly pathogenic HPAIV.
Virus may appear not unexpected in a type that does not exist previous


Virus Interactions With Human
Although the H5N1 virus is NOT easy spread from birds to humansor from human to human, but the H5N1 virus is a potential cause a pandemic (endemics are
extends)

Why We Must Alert?
The H5N1 virus is a new virus for humans and has been infecting hundreds of people with a death rate that
is as high as 80% Ducks and chickens has become a reservoir for petH5N1 virus without any symptoms of illness.
The H5N1 virus that we face today are much more deadly and may survive longer than emergence in early 1997
The H5N1 virus has infected and killed species
mammals such as horses, pigs, cats, and humans
|Behavior of the H5N1 virus on its habitat may be changed after the 6000 death of migratory birds in
China due to the H5N1 virus.



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