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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.
This is a timeline of influenza, briefly describing major events such as outbreaks, epidemics, pandemics, discoveries and developments of vaccines.In addition to specific year/period-related events, there is the seasonal flu that kills between 250,000 and 500,000 people every year and has claimed between 340 million and 1 billion human lives throughout history.
READ MORE: Bird flu cases surging in UK but risk to humans remains low Inoculating eggs with live virus was the first step to producing a vaccine. AP Photo Over the past 60 years, the influenza ...
In the first two months of 2006 H5N1 spread to other Asian countries (such as India), north Africa, and Europe in wild bird populations possibly signaling the beginning of H5N1 being endemic in wild migratory bird populations on multiple continents for decades, permanently changing the way poultry are farmed. [citation needed]
The threat of avian flu has dominated public health discourse as cases become increasingly more widespread and severe. H5N1, a highly pathogenic strain, was present in several continents as early ...
What we think of as the seasonal flu in humans is caused by types A and B. Bird flu falls under the umbrella of influenza A viruses. The strain currently spreading in the U.S. is H5N1, an HPAI ...
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 ...
Dairy industry experts say the virus entered California after local cows were shipped to another state and then returned to California.