![]() ![]() They can carry the disease to new areas when migrating, potentially exposing domestic poultry to the virus. Wild birds can be infected with HPAI and show no signs of illness. What is the role of wild birds in spreading avian influenza? Low pathogenicity avian influenza (LPAI).Highly pathogenic avian influenza (HPAI).Most viruses are of low pathogenicity, meaning that they cause no signs or only minor clinical signs of infection in poultry. Each combination is considered a different subtype and can be further broken down into different strains which circulate within flyways/geographic regions.Īvian influenza viruses are classified as either “low pathogenic” or “highly pathogenic” based on their genetic features and the severity of the disease they cause in poultry. Many different combinations of “H” and “N” proteins are possible. Avian influenza viruses are classified by a combination of two groups of proteins: hemagglutinin or “H” proteins, of which there are 16 (H1–H16), and neuraminidase or “N” proteins, of which there are 9 (N1–N9). What is avian influenza?Īvian influenza is caused by an influenza type A virus which can infect poultry (such as chickens, turkeys, pheasants, quail, domestic ducks, geese and guinea fowl) and is carried by free flying waterfowl such as ducks, geese and shorebirds. USDA APHIS posts all confirmed HPAI cases in non-commercial and commercial flocks on the agency’s website. Producers should report sick birds or unusual bird deaths to State/Federal officials, either through their state veterinarian or through APHIS’ toll-free number at 1-86. Response measures are in place to control and contain avian influenza. These cases all have been the H5N1 Eurasian strain, the same virus that has been detected across Asia and Europe in recent months. Since the initial detection, we have now seen several other confirmed HPAI cases in commercial poultry flocks and non-commercial backyard flocks in several states. ![]() What is the current situation in the United States?Īfter being found in wild birds in the United States and commercial flocks in Canada, the first domestic case of HPAI in a commercial poultry flock since 2020 was detected in early February. Click here to review the Core Four steps for food safety. Consumers should continue to practice proper handling and cooking of all poultry products to 165☏. Turkeys with HPAI are no longer viable for sale and are prohibited from entering the marketplace. Avian influenza does not pose a food safety risk. Turkey products remain safe and nutritious.In addition to potentially spreading disease from farm to farm or bird to bird, you can also spread germs such as Salmonella that can impact human health. Wash your hands before and after coming in contact with live poultry or wild birds.More information is available from the Centers for Disease Control and Prevention. HPAI detections in birds do not present a public health concern. ![]()
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