Highly Pathogenic Avian Influenza H5N1 has been detected again on Oahu as the migratory season starts in Hawaii. The October 2025 sample was taken from an ill migratory pintail duck found on the UH Manoa campus which died shortly after intake by the Hawaii Wildlife Center.
H5N1 influenza A is highly infectious among wild birds and poultry, and has been responsible for widespread culling of poultry flocks worldwide. As it has become endemic in the continental United States, HPAI infections have also been reported in other animals including livestock and cats. Human infection risk remains low and human cases have been primarily linked to direct animal exposure.
Please remain cautious when dealing with wildlife, particularly any sick or dead birds. Remind your clients to not feed wildlife or attract wild birds near pets or backyard flocks, and to avoid touching any sick or dead birds. PPE such as facemasks and gloves should be worn if necessary to handle sick or dead birds.
Hawaii Department of Agriculture and Biosecurity may be contacted for consultation on any suspected cases: 808-483-7100, Monday to Friday from 7:45 a.m. to 4:30 p.m., or 808-837-8092 during non-business hours and holidays, Email: dabic@hawaii.gov.
As seabird fallout season also arrives (Nov-Dec), the public can still help with lost seabirds: https://dlnr.hawaii.gov/wildlife/seabird-fallout-season/#response
HPAI Resources:
https://www.avma.org/resources-tools/animal-health-and-welfare/animal-health/avian-influenza