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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 - Centers for Disease Control and Prevention
Avian influenza or bird flu refers to the disease caused by infection with avian (bird) influenza (flu) Type A viruses.
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.
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.
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.
2020–2026 H5N1 outbreak - Wikipedia
H5N1 was first detected in the islands of the Antarctic region in October 2023, via a brown skua on Bird Island, near South Georgia.
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
Bird flu (avian influenza) | Australian Centre for Disease Control
Bird flu (technically known as avian influenza) is caused by specific influenza A viruses that usually infect birds. These viruses are different to those that cause seasonal flu in humans. Bird flu rarely spreads to people. When it does, it most often causes a respiratory infection.
Avian Influenza - Animal and Plant Health Inspection Service
Avian influenza, or "bird flu," is a contagious viral disease of domestic and wild birds. It's a major threat to the poultry industry, animal health, trade, and the economy worldwide. Caused by influenza type A viruses, the disease varies in severity depending on the strain and species affected.
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