H5 Bird Flu: Current Situation | Bird Flu | CDC
Nov 24, 2025 · CDC provides an update on recent developments in the multistate outbreak of avian influenza A (H5N1) The current outbreak began in late March 2024 with the detection of …
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 …
Influenza: A (H5N1) - World Health Organization (WHO)
May 16, 2024 · H5N1 is one of several influenza viruses that causes a highly infectious respiratory disease in birds called avian influenza (or "bird flu"). Infections in mammals, including humans, …
Avian Influenza (Bird Flu): H5N1, Causes, Symptoms & Treatment
Dec 5, 2024 · A type of influenza A virus, often H5N1 in humans, causes bird flu. The virus can infect your upper respiratory tract and lungs, and sometimes spread to other parts of your …
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 …
What's the status of the H5N1 flu outbreak | Johns ... - Johns …
Jul 22, 2025 · H5 influenza is a highly pathogenic strain of flu. It is not uncommon for H5 to cause infections in birds, and it’s carried by wild birds on their migratory routes. What’s different …
First Human Dies of Rare H5N5 Bird Flu Strain. Here’s What You …
6 days ago · Here’s What You Need to Know H5N1 bird flu has been circulating in U.S. wildlife since late 2021 but has caused only one human fatality. Now a different type of bird flu has …
Epidemiological Update Avian Influenza A(H5N1) in the Americas …
6 days ago · In 2020, the highly pathogenic avian influenza (HPAI) virus subtype H5N1 clade 2.3.4.4b caused an unprecedented number of deaths among wild birds and poultry in …
H5N1 - Bird Flu - The Official Web Site for The State of New Jersey
H5N1 (called “Highly Pathogenic Avian Influenza” or “bird flu”) is a disease caused by influenza A viruses. Wild birds, particularly waterfowl, can carry and spread these viruses but may show …
Avian Influenza Type A | Bird Flu | CDC
Dec 20, 2024 · Sporadic A (H5) virus infections of humans have occurred, such as with HPAI A (H5N1) viruses associated with poultry outbreaks in many countries. Human infections with …