![]() ![]() ![]() In rare instances, the "bird flu" virus can be transmitted to humans primarily through direct exposure to infected birds or the environment where the infected birds live. In poultry, it causes severe illness and death. ![]() Rarely, do domestic birds, such as chickens, also get infected with "bird flu" H5N1. Birds infected with highly pathogenic H5N1 virus can experience very mild to very severe symptoms, including death. This virus strain typically infects wild waterfowl, such as ducks. The H5N1 strain commonly called "bird flu" is the highly pathogenic type. There are two types of influenza A H5N1: highly pathogenic and low pathogenic. "Bird flu" typically refers to an influenza A virus type called H5N1. Humans that get avian influenza usually have come in direct contact with infected birds, birds that have died from avian influenza, or bird droppings from infected birds. Avian influenza viruses usually infect birds, but rare cases of human infection with these viruses have been reported. ![]()
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