H5 Bird Flu: Current Situation | Bird Flu | CDC - Centers for Disease ...
3 days ago · H5 bird flu is widespread in wild birds worldwide and is causing outbreaks in poultry and U.S. dairy cows with several recent human cases in U.S. dairy and poultry workers. While the current public health risk is low, CDC is watching the situation carefully and working with states to monitor people with animal exposures.
Influenza A virus subtype H5N1 - Wikipedia
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 …
H5N1: How worried should we be? - University of South Florida
1 day ago · H5N1 remains a major threat to poultry and wild bird populations, leading to large-scale culling of domestic fowl in many countries over the past few years to control outbreaks and reduce economic losses. The virus has caused a dramatic rise in bird infections worldwide, particularly in Asia, Europe and North America, throughout 2022 and 2023.
First H5 Bird Flu Death Reported in United States | CDC Newsroom
January 6, 2025 -- CDC is saddened by Louisiana's report that a person previously hospitalized with severe avian influenza A(H5N1) illness ("H5N1 bird flu") has passed away.While tragic, a death from H5N1 bird flu in the United States is not unexpected because of the known potential for infection with these viruses to cause severe illness and death.
H5 bird flu has spread to all 50 states, maps show where - USA …
Dec 21, 2024 · The CDC determined the person was likely exposed to H5N1 from sick or dead birds in a backyard flock – the first time a U.S. case has been linked to a backyard flock.
CDC Confirms First Severe Case of H5N1 Bird Flu in the United …
December 18, 2024-- A patient has been hospitalized with a severe case of avian influenza A(H5N1) virus ("H5N1 bird flu") infection in Louisiana. This marks the first instance of severe illness linked to the virus in the United States.
Highly Pathogenic Avian Influenza A(H5N1) Virus Infections in …
Dec 31, 2024 · Highly pathogenic avian influenza A (H5N1) viruses have caused widespread infections in dairy cows and poultry in the United States, with sporadic human cases. We describe characteristics of...
The Emerging Threat of H5N1 to Human Health | NEJM
Dec 31, 2024 · Highly pathogenic avian influenza (HPAI) A(H5N1) emerged in 1997.1 Since then, it has spread globally by migratory birds, resulting in infections in animals on every continent. HPAI A(H5N1) clade 2...
Influenza: A(H5N1) - World Health Organization (WHO)
May 16, 2024 · H5N1 influenza virus infection can cause a range of diseases in humans, from mild to severe and in some cases, it can even be fatal. Symptoms reported have primarily been respiratory, but conjunctivitis and other non-respiratory symptoms have also been reported.
H5N1 Bird Flu: What You Need to Know > News - Yale Medicine
Jan 7, 2025 · Avian influenza A (H5N1), or bird flu, is spreading among cows in the United States. A Yale Medicine expert tells you what you need to know to stay safe.