In New York, 2025 started off with an increase in bird cases of highly pathogenic avian influenza (HPAI). We found H5N1 in nearly 200 birds thus far, waterfowl and raptors being the most …

Jun 15, 2022 · HPAI is a specific type of ‘bird flu’ that can cause serious disease and death in many species of birds. HPAI has long been recognized as an important poultry disease, but it …

To identify the baseline HPAI distribution across U.S. flyways and constituent watersheds and to detect early spread of HPAI to new flyways and regions, sample units were defined …

Avian influenzas are classified into two categories: low pathogenic avian influenza (LPAI) and highly pathogenic avian influenza (HPAI). LPAI viruses cause either no signs of disease or …

The purpose of this document is to detail the essential components of a national surveillance system for influenzas of interest in wild, migratory birds in order to provide HPAI infection risk …

Mar 17, 2020 · As of June 2015, the new strains of HPAI have been detected in 3 of the 4 migratory flyways, with no positives yet in the Atlantic flyway; however little sampling has been …

There have been six virus introductions to date along both Atlantic and Pacific flyway; the majority of the reassortants have emerged with the A1 genotype. Migratory bird GenoFlu genotypes by …

Oct 12, 2022 · Migratory Waterfowl Flyways in the US. Waterfowl and waterbird migration in North America consists of north-south seasonal movements between breeding grounds and …

The genetic footprints of all segments of the viruses, integrating migratory wild bird flyways and our phylogenetic data, provide evidence that the H5N1 HPAI viruses have been introduced to …

Jun 6, 2022 · Author summary The recent first detection of highly pathogenic avian influenza (HPAI) virus in wild birds inhabiting the Atlantic Flyway of North America (Newfoundland, …