Prevention and Antiviral Treatment of Bird Flu Viruses in People
CDC considers the current risk to the general public from the H5N1 bird flu outbreak in wild birds and poultry to be low. For information on the most recent bird flu developments specific to the United States, please visit the Current Situation Summary page.
- Protective actions around birds
- The best prevention is to avoid sources of exposure
- Protective actions for people who come into contact with birds infected with bird flu because of their job
- Information for other groups who may come into contact with birds
- If you’ve had direct contact with infected birds and become sick
- CDC also recommends that everyone 6 months and older get a seasonal flu vaccine every year.
- As a general precaution, whenever possible people should avoid direct contact with wild birds and observe them only from a distance.
- Wild birds can be infected with avian (bird) influenza (flu) A viruses even if they don’t look sick.
- Avoid unprotected contact with domestic birds (poultry) that look sick or have died.
- Do not touch surfaces that may be contaminated with saliva, mucous or feces from wild or domestic birds.
The best way to prevent avian (bird) influenza (flu) is to avoid sources of exposure whenever possible. Infected birds shed bird flu virus in their saliva, mucous and feces. People rarely get bird flu; however, human infections with bird flu viruses can happen when enough virus gets into a person’s eyes, nose or mouth, or is inhaled. This can happen when virus is in the air (in droplets or possibly dust) and a person breathes it in, or when a person touches something that has virus on it and then touches their mouth, eyes or nose. Bird flu infections in people happen most often after close, prolonged and unprotected (no gloves or other protective wear) contact with infected birds and then the person touches their mouth, eyes, or nose.
Protective actions for people who come into contact with birds infected with bird flu because of their job
If you must handle sick poultry because of your job as a bird flu outbreak responder, use protective wear (like gloves, a medical facemask, and eye protection), wash your hands with soap and water after touching birds, and change your clothes before contact with healthy domestic poultry and after handling wild birds. Then, throw away the gloves and facemask. CDC has more information available on what to do after you have been exposed to infected poultry.
CDC has information availablepdf icon for if you have had direct contact with infected birds and you become sick.
Hunters who handle wild birds should dress game birds in the field when possible and practice good biosecurity to prevent any potential disease spread. If possible, wear gloves when dressing birds, and wash hands with soap and water afterwards.
Bird owners should practice good biosecurity and prevent contact between their birds and wild birds. Bird owners should report sick birds or unusual bird deaths to the state or the federal government, either through their state veterinarian or by calling USDA’s toll-free number at 1-866-536-7593. Find additional information on biosecurity for backyard flocks on USDA’s APHIS websiteexternal icon.
For more information about bird flu and what to do if you have been exposed to bird flu, visit: What To Know About Bird Flu (cdc.gov) pdf icon[154 KB, 2 Pages].
CDC has information availablepdf icon for different groups of people who may become infected with birds and become sick.
People who become sick within 10 days of their exposure to infected birds should isolate at home away from their household members and should not go to work or school until they are proven not to have bird flu virus infection and have recovered from their illness. The local or state public health department can assist in monitoring and advising when isolation is no longer required.
Close contacts (family members, etc.) of people who have been exposed to bird flu viruses should monitor their health and report to their health care provider any new symptoms, especially respiratory symptoms, within 10 days of the exposure.
It is especially important that people who may have exposure to sick birds get a seasonal flu vaccine, ideally 2 weeks before their potential exposure, if possible. Seasonal flu vaccination will not prevent infection with bird flu viruses, but can reduce the risk of getting sick with human and bird flu viruses at the same time.
State and local governments have different policies for collecting and testing birds, so check with your state health department, state veterinary diagnostic laboratory, or state wildlife agency for information about reporting dead birds in your area. Wildlife agencies regularly investigate sick or dead bird events if large numbers are impacted. This type of reporting could help with the early detection of illnesses like West Nile virus or bird flu. If local authorities tell you to throw away the bird’s carcass (body), don’t touch it with your bare hands. Use gloves or a plastic bag turned inside out to place the body in a garbage bag, which can then be thrown away in your regular trash. To report unusual signs in birds you have seen in the wild, call 1-866-536-7593.
The U.S. poultry industry has strict health and safety standards, including regular monitoring for bird flu. It is safe to eat properly handled and cooked poultry in the United States. Properly handling and cooking poultry and eggs to an internal temperature of 165˚F kills bacteria and viruses, including bird flu viruses. People should handle raw poultry hygienically and cook all poultry and poultry products (including eggs) all the way before eating. Eating uncooked or undercooked poultry can make you sick. More information is available at Chicken and Food Poisoning.
While there is no evidence that anyone has gotten bird flu after eating properly cooked poultry products, uncooked poultry and poultry products (like blood) could have been the source of a small number of bird flu infections in people in Southeast Asia. Visit USDA – Food Safety Educationexternal icon for instructions on handling poultry safely.
Currently, CDC does not recommend against travel to any countries due to bird flu viruses in wild birds, poultry, or people. CDC recommends that travelers to countries and states with bird flu outbreaks in poultry or people:
- Do not visit poultry farms, bird markets and other places where live poultry are raised, kept, or sold, if possible.
- Do not eat raw or undercooked poultry products and wash your hands after touching uncooked poultry.
- Practice good hygiene and cleanliness.
- Visit a doctor if you become sick during or after travel.
CDC currently recommends treatment as soon as possible with flu antiviral drugs for people who get sick with bird flu. Antiviral treatment works best when started as soon as symptoms begin. If you get sick after being in close contact with sick or potentially infected birds, contact your state or local health department and a health care provider right away. They may have you get tested for bird flu and a health care provider may write you a prescription for an antiviral drug to treat your illness. It’s important to take the medication as directed.
Available data on bird flu viruses spreading worldwide suggest that most bird flu virus infections would respond to treatment with flu antiviral drugs, if treatment is started early after symptoms begin. However, some evidence shows flu antiviral drugs may not work as well against some A(H5N1) and A(H7N9) bird flu viruses that were first detected in Asia. When flu viruses evolve in ways that make antiviral treatment less effective, this is called antiviral resistance. CDC regularly tests bird flu viruses for antiviral resistance.
The United States federal government maintains a stockpile of vaccines, including vaccines against A(H5N1) and A(H7N9) bird flu viruses. These vaccines could be used if similar viruses were to begin spreading easily from person to person. Since flu viruses change, CDC continues to make candidate vaccine viruses (CVVs) as needed. Creating a CVV is the first step in producing a flu vaccine. More information about Making a candidate Vaccine Virus (CVV) for a Highly Pathogenic Avian Influenza (Bird Flu) Virus is available.
If you’re a clinician, laboratorian or public health worker
Avian Influenza: Information for Health Professionals and Laboratorians for the latest guidance.