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A(H5) Bird Flu: Current Situation - CDC
CDC is using its flu surveillance systems to monitor for A (H5) bird flu activity in people. On July 7, 2025, CDC streamlined A (H5) bird flu updates with routine influenza data updates and updated reporting cadences to reflect the current public health situation.
Avian influenza - Wikipedia
Avian influenza (AI), or bird flu, has significantly impacted the poultry industry with economic ramifications felt globally. The virus primarily affects poultry species, and when outbreaks occur, large-scale culling of infected birds is often necessary to prevent further spread.
Bird Flu | Bird Flu | CDC
Find the latest information about detections of H5N1 bird flu in people. A multi-state outbreak of HPAI A (H5N1) bird flu in dairy cows was first reported on March 25, 2024. CDC surveillance shows no indicators of unusual flu activity in people, including H5N1 bird flu.
Avian Influenza (Bird Flu): H5N1, Causes, Symptoms & Treatment
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 body like your brain.
Highly Pathogenic Avian Influenza Continues to Affect Wild Birds Across ...
The U.S. Geological Survey’s National Wildlife Health Center is closely monitoring the ongoing impacts of highly pathogenic avian influenza on wild bird populations across the United States as the virus continues to drive significant mortality events nationwide.
Avian Influenza - Mass.gov
Low Pathogenic Avian Influenza (LPAI), is a respiratory disease of poultry, turkeys, game birds, and waterfowl. Symptoms of low pathogenic AI are typically mild and in many cases not present.
Bird flu (avian influenza) - Symptoms and causes - Mayo Clinic
Flu viruses in other animals, such as birds, may be a risk to people. Learn more about the symptoms, causes, prevention and treatment for bird flu in people.
What is avian influenza? Fast facts on ‘bird flu’ in the U.S.
Highly pathogenic avian influenza, HPAI, or “bird flu,” cases are popping up, so here are some expert facts about the viral disease.
Why Bird Flu Is Surging Again—And What It Means for Public Health ...
After a quiet summer, bird flu cases are rising again. Scientists expected the development, but what happens next is still uncertain
Detections of Highly Pathogenic Avian Influenza in Wild Birds
Wild birds can be infected with highly pathogenic avian influenza (HPAI) and show no signs of illness. They can carry the disease to new areas when migrating, potentially exposing domestic poultry to the virus.
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