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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.
Infected birds shed the virus in their saliva, mucus, and feces. The virus was first detected in poultry in 2013, since then spreading among wild bird populations and poultry around the world. Humans can be infected through unprotected contact with infected birds or contaminated surfaces. The virus transmits by getting into a person's eyes ...
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 ]
The virus has sickened 55 people in the U.S. ... H5N1 avian influenza, or bird flu. U.S. health agencies say that the virus currently poses a low risk to the general public, even though it is ...
Infected wild birds can spread the virus to poultry and other animals through feces, mucus, and saliva. Avian flu has so far impacted more than 99 million poultry in 48 states and more than 150 ...
What are bird flu symptoms? Bird flu is a respiratory virus. In severe cases in humans, it can cause pneumonia, according to the CDC. Symptoms can include fever, cough, sore throat, runny nose ...
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 bird flu virus drawing attention today — Type A H5N1 — was first identified in 1959. Like other viruses, it has evolved over time, spawning newer versions of itself.