4 days ago · Detections in Animals. 12,842 wild birds detected as of 4/15/2025 | Full Report. 51 jurisdictions with bird flu in wild birds. 168,621,877 poultry affected as of 4/16/2025 | Full Report. 51 jurisdictions with outbreaks in poultry. 1,021 dairy herds affected as of 4/16/2025 | Full Report. 17 states with outbreaks in dairy cows. These data …

A highly pathogenic strain of H5N2 caused flu outbreaks with significant spread to numerous farms, resulting in great economic losses in 1983 in Pennsylvania, USA in chickens and turkeys, in 1994 in Mexico in chickens and a minor outbreak in 1997 in Italy in chickens.

Jun 6, 2024 · H5N2, which was confirmed in a man in Mexico who died, is just one of several kinds of avian influenza viruses. It’s deadly for poultry, but does it pose a significant risk to humans?

Dec 20, 2024 · There are nine known subtypes of A(H5) viruses [A, A(H5N2), A(H5N3), A(H5N4), A(H5N5), A(H5N6), A(H5N7), A(H5N8), and A(H5N9)]. Most A(H5) viruses identified worldwide in wild birds and poultry are LPAI, but occasionally HPAI A(H5) viruses have been detected.

Jun 6, 2024 · The infection, the world’s first laboratory-confirmed human case of the H5N2 bird flu variant, comes as the United States battles outbreaks of a different avian influenza strain, H5N1, among ...

Jun 5, 2024 · On 23 May 2024, the Mexico International Health Regulations (IHR) National Focal Point (NFP) reported to PAHO/WHO a confirmed fatal case of human infection with avian influenza A(H5N2) virus detected in a resident of the State of Mexico who was hospitalized in …

Jun 6, 2024 · On Wednesday, WHO said it had confirmed the first case of human infection of H5N2 in a 59-year-old resident of Mexico. This 2005 electron microscope image shows an avian influenza A H5N1 virion.

Jun 6, 2024 · What are the key differences from the H5N2 bird flu virus that killed a man in Mexico and the H5N1 found in the U.S.? Here’s what experts say.

The HPAI H5 viruses that have infected birds in the United States have been caused by three subtypes to date: H5N1, H5N2, and H5N8 viruses. To date, no human infections with HPAI H5 viruses have been identified in the United States.

Many combinations of HA and NA proteins are possible, for example H5N1, H5N2, H7N2, and H7N8. AI viruses are also classified into two groups based on their ability to produce disease in chickens: highly pathogenic avian influenza (HPAI) or low pathogenic avian influenza (LPAI).