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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.
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.
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.
Evidence of Bird Flu Transmission from Pet Cat to Human Confirmed for ...
A veterinary professional in Los Angeles County tested positive for H5N1 after exposure to an infected cat. The infected cats became sick after consuming raw milk, raw meat, or raw pet food.
Avian Influenza (Avian Flu, Bird Flu, H5N1) - New York State Department ...
Avian influenza (also called "bird flu") is a disease caused by a group of viruses that occur naturally in wild birds and can spread to poultry, dairy cattle, and other mammals.
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.
Influenza (avian and other zoonotic) - World Health Organization (WHO)
Human infections with avian influenza viruses can cause illness ranging from mild, flu-like symptoms or eye inflammation (conjunctivitis) to severe, acute respiratory disease and death.
Avian Influenza (Bird Flu) Fact Sheet - Cornell University College of ...
What is avian influenza? Avian influenza is an influenza type A virus that occurs naturally in wild aquatic birds, including ducks, geese and gulls. Mild forms of avian influenza (known as low pathogenic avian influenza, or LPAI) are routinely found in wild birds and don’t cause serious illness.
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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