While any avian influenza infection in a human can cause severe disease, the recent bird flu outbreaks have elevated various concerns.
Whenever avian influenza viruses are circulating in poultry, wild birds, or mammals, there is a risk for humans due to exposure to infected animals or contaminated environments.
Globally, eleven human influenza A H5N1 2.3.4.4b infections have been reported during 2022-2023.
Human Bird Flu Infection Explained
Where Did This Bird Flu Outbreak Originate
A team of researchers has tracked the arrival and progression of H5N1 bird flu (Avian influenza) outbreaks in Canada, Mexico, and the United States.
Led by the University of Maryland (UMD) researchers, this team found an unusual change from seasonal highly pathogenic avian influenza (HAPI) to year-round infections and a far more significant impact on birds, mammals, and people.