Influenza virus is an infectious agent belonging to the virus family Orthomyxoviridae that causes a respiratory tract infection (influenza or 'flu') in vertebrates. There are three main species ...

The H5N1 avian influenza virus has infected birds and mammals around the world. As of June 2025, 70 people have been infected, and 1 person has died in the United States.

As the Centers for Disease Control and Prevention (CDC) explains, bird flu is a disease caused by the influenza A virus. At the same time, recent CDC data shows that seasonal influenza A is rising ...

Influenza A is believed to be the most severe type of flu virus for humans, although this is the subject of debate, as there is some evidence to suggest that influenza B might be equally as dangerous.

Every winter, influenza returns with a new variant. People who have previously been infected with or vaccinated against flu may have some protection, but this depends on how well their immune system’s ...

Influenza A(H1N1)pdm09 Virus Therapeutics and Challenges. Shailendra K Saxena; Rosaiah Kotikalapudi; Sneham Tiwari; Charuvaka Muvva. Disclosures. Future Virology. 2012;7(10):947-950.

Three veterinarians had antibodies to bird flu virus, which suggests recent infection, the report said. None of them knew they were working with dairy cattle with known or suspected H5N1 infections.

Avian influenza A(H5N1) virus is spreading through dairy herds across the United States. In this report, wastewater surveillance shows the increase of H5N1 across 10 urban communities.

Scientists have discovered that H5N1, the strain of highly pathogenic avian influenza virus currently spreading in U.S. dairy cows, only needs a single mutation to readily latch on to human cells ...

The problem, according to Hasson, is that influenza is a more serious virus that many people realize. It can affect the entire body, attacking the heart, lungs, brain and kidneys.

By Zach Lewis Click here for updates on this story UTICA, N.Y. (WKTV) — New York State is staying vigilant to curb the spread of highly pathogenic avian influenza (HPAI) and to promote early ...

By Zach Lewis Click here for updates on this story UTICA, N.Y. (WKTV) — New York State is staying vigilant to curb the spread of highly pathogenic avian influenza (HPAI) and to promote early ...