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Avian Influenza
Updated 6 Feb 2025
Highly pathogenic avian influenza (HPAI) A (H5) viruses, to include the H5N1 virus, have been active throughout the world for many years. This is why the BASH Team and other federal agencies require that all bird remains shipped to the Smithsonian from any overseas location are accompanied by three mandatory documents – Certificate of Origin, Certificate of Treatment, and the current annual APHIS Permit for Overseas Shipment of Wildlife Strike Remains.
Highly pathogenic avian influenza (HPAI) A (H5) viruses have been detected in the U.S. wild aquatic birds, commercial poultry and backyard or hobbyist flocks beginning in January 2022. These are the first detections of HPAI A (H5) viruses in the U.S. since 2016. Testing completed on some virus specimens shows these viruses are HPAI A (H5N1) viruses.
According to the Smithsonian, these H5 outbreaks have been happening with more frequency in birds in recent years. The chances of humans getting infected is very low and so far, only a few cases of this flu have been detected in humans who have been in close proximity to domestic flocks. We continue to monitor the situation. In the meantime, standard PPE is recommended, as always, for handling bird remains. For increased protection, use alcohol-based handwipes to sample bird remains. The chances of getting this from dead birds is extremely low.
CDC influenza (flu) surveillance systems show no indicators of unusual influenza activity in people, including avian influenza A (H5N1). CDC continues to assess that the current H5N1 bird flu risk to the general public remains low. For up-to-date information on H5N1 please visit the CDC website at www.cdc.gov/bird-flu/situation-summary/index.html.
Dr. Carla Dove (Smithsonian Institution Feather ID Lab)
Daniel Sullivan (USAF BASH Team Chief)