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A(H5) Bird Flu: Current Situation - CDC
A (H5) bird flu is widespread in wild birds worldwide and is causing outbreaks in poultry and U.S. dairy cows with sporadic human cases in U.S. dairy and poultry workers. While the current public health risk is low, CDC is watching the situation carefully and working with states to monitor people with animal exposures. CDC is using its flu surveillance systems to monitor for A (H5) bird flu ...
Avian Influenza (Bird Flu): H5N1, Causes, Symptoms & Treatment
Bird flu (avian influenza) is a type of viral infection that spreads in birds and some mammals. Sometimes, humans can get bird flu from infected animals.
Avian influenza - Wikipedia
Avian influenza, also known as avian flu or bird flu, is a disease caused by the influenza A virus, which primarily affects birds but can sometimes affect mammals including humans. [1] Wild aquatic birds are the primary host of the influenza A virus, which is enzootic (continually present) in many bird populations. [2][3] Symptoms of avian influenza vary according to both the strain of virus ...
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.
Bird flu: Where we are now and what to know about prevention
Bird flu, or avian influenza, is a viral infection that primarily affects birds but can be transmitted to humans. With ongoing outbreaks and evolving research, it's important to understand the risks, how the virus spreads, and what you can do to stay safe. Here's what we know about bird flu in February 2025. What is bird flu?
Bird flu (avian influenza) - Symptoms and causes - Mayo Clinic
Bird flu, also called avian influenza, is caused by influenza type A virus infections in bird species. Depending on the strain, bird flu may cause the bird to have no symptoms, mild illness, serious illness or lead to the death of the bird. Bird flu rarely infects humans. But health officials worry because influenza A viruses that infect birds can change, called mutate, to infect humans and ...
Bird Flu | Bird Flu | CDC
Bird Flu Avian influenza or bird flu refers to the disease caused by infection with avian (bird) influenza (flu) Type A viruses.
Bird flu: Your questions on symptoms, spread and safety answered
Bird flu, also called avian flu and H5N1, is a type A influenza. Flu comes in types A, B, C and D. Type A influenza is a more severe form of flu that can infect humans, birds and other animals. The ever-changing seasonal flu viruses include influenza type A as well as type B, a sometimes milder flu that only infects people.
Influenza: Avian - World Health Organization (WHO)
WHO questions and answers page on avian influenza – A(H5N1) – including symptoms, treatments and prevention.
Avian Influenza - Washington State Department of Health
Avian influenza (bird flu) is a disease caused by infection with avian (bird) influenza (flu) Type A viruses. These viruses occur naturally in wild aquatic birds, but can also infect poultry (such as chickens, turkeys, pheasants, quail, domestic ducks, geese and guinea fowl) and other bird species, as well as wildlife and domestic animals.
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