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A H5N1 vaccine is an influenza vaccine intended to provide immunization to influenza A virus subtype H5N1. Vaccination of poultry against the avian H5N1 influenza epizootic is widespread in certain countries. [6] [7] Some vaccines also exist for use in humans, and others are in testing. As of July 2024 these include Aflunov, Celldemic and ...
Influenza A/H5N1 was first detected in 1959 after an outbreak of highly pathogenic avian influenza in Scotland, which infected two flocks of chickens. [ 59 ] [ 60 ] The next detection, and the earliest infection of humans by H5N1, was an epizootic (an epidemic in nonhumans) of H5N1 influenza in Hong Kong's poultry population in 1997.
Early results from H5N1 clinical trials showed poor immunogenicity compared to the 15-mcg dose that induces immunity in a seasonal flu vaccine. Trials in 2006 and 2007 using two 30-mcg doses produced unacceptable results while a 2006 trial using two doses of 90 mcg each achieved acceptable levels of protection.
As cases of H5N1, also known as avian flu or bird flu, continue to surface across the U.S., safety precautions are ramping up. The U.S. Centers for Disease Control and Prevention (CDC) announced ...
The U.S. has two vaccines ready that could begin shipping widely within a few weeks if the H5N1 bird flu infecting dairy cows begins spreading more easily to people, federal health officials said ...
Los Angeles County reported its first case of human H5N1 bird flu ... of Allergy and Infectious Diseases in 2024 shows avian influenza A virus (bird flu) particles, red-yellow, grown in cultured ...
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.
A pair of vaccines are ready to ship within weeks if the bird flu — which has been found circulating in dairy cows in nine states — jumps to humans, say US health officials.. There's no ...