H5N1, also known as avian influenza, is a highly pathogenic virus that primarily affects birds but can occasionally infect humans. This slide introduces the audience to the basics of H5N1, its origins, and why it is a concern in 2025.
RECENT SURGE IN CASES
As of January 6, 2025, there have been 66 confirmed human cases of H5N1 bird flu in the United States since 2024. This is the first person in the United States to die from an H5 infection.
SYMPTOMS OF H5N1 INFECTION
Common symptoms of H5N1 infection in humans, including fever, cough, sore throat, and severe respiratory distress. Emphasize the importance of early detection and seeking medical help.
HOW BIRD FLU SPREADS
H5N1 spreads from birds to humans, primarily through direct contact with infected birds or contaminated environments.
HOW TO PREVENT BIRD FLU
Individuals can take to reduce their risk of infection, such as avoiding contact with wild birds, practicing good hygiene, and staying informed about outbreaks.
GLOBAL RESPONSE AND MEASURES
Governments and health organizations worldwide are responding to the H5N1 outbreak. This includes quarantine measures, surveillance, and public health advisories.
IMPACT ON POULTRY INDUSTRY
Impact of H5N1 on the poultry industry, including culling operations, trade restrictions, and the effect on poultry farmers. Measures being taken to control the spread in farms.
VACCINE DEVELOPMENT
CDC has developed H5 candidate vaccine viruses (CVVs) that are nearly identical or, in many cases, identical to the hemagglutinin (HA) protein of recently detected clade 2.3.4.4b avian influenza A(H5N1) viruses in humans, birds and other mammals.Development is in process.
MYTHS AND MISCONCEPTIONS
While H5N1 is a serious virus with a higher mortality rate compared to other strains of influenza, not all cases are fatal.Early detection and treatment can significantly improve outcomes.-Human-to-human transmission is extremely rare and has not sustained long enough to cause widespread outbreaks.