The state Department of Health is investigating possible sources of H5 avian influenza after the virus was detected for the first time at a wastewater sampling site on Oahu.

What You Need To Know

  • The sample was collected on Nov. 7, and the department received the result on Tuesday.
  • One type of H5 avian influenza, H5N1, has been spreading among birds and mammals, leading to a nationwide outbreak
  • There is no evidence of sustained human-to-human transmission of H5N1 in the United States
  • Residents are urged to contact the DOH without delay if they develop symptoms of avian influenza and have been in close contact with sick or dead animals

The sample was collected on Nov. 7, and the department received the result on Tuesday.

DOH noted that wastewater sampling is routinely performed across Hawaii as part of ongoing surveillance for infectious diseases, including avian influenza. One type of H5 avian influenza, H5N1, has been spreading among birds and mammals, leading to a nationwide outbreak.

Wastewater testing cannot determine whether the H5 avian influenza detected is H5N1 but can indicate whether further investigation is needed, according to the department.

Hawaii is the only state in which H5N1 has not been detected in birds or animals. In other states, human cases have been reported among those working closely with infected animals. However, there is no evidence of sustained human-to-human transmission of H5N1 in the United States. 

The department said it would continue to work with federal agriculture and wildlife partners to support further investigation, prevention, and public health surveillance efforts.  

DOH said the overall risk of H5N1 to Oahu and state residents remains low but encourages residents to follow best practices when around animals or when consuming animal products, including:

  • In general, do not touch birds, livestock, or wild animals that are sick or dead without personal protective equipment. 

  • Report sick pets to their veterinarian. To report multiple or unusual illnesses or deaths in poultry, livestock or wild birds and animals, contact the Animal Industry Division at Hawaii Department of Agriculture at 808-483-7106, Monday to Friday from 7:45 a.m. to 4:30 p.m., or 808-837-8092 during non-business hours and holidays .

  • Do not touch or consume raw milk or raw milk products, especially from animals with confirmed or suspected avian influenza infection. Pasteurized milk products are safe.

Residents are also urged to contact the DOH without delay at 808-586-4586 if they develop symptoms of avian influenza and have been in close contact with sick or dead animals. Symptoms of avian influenza may include fever, cough, sore throat and conjunctivitis. Antiviral flu treatment is available and recommended as soon as possible for people with suspected or confirmed avian influenza infection.

Michael Tsai covers local and state politics for Spectrum News Hawaii. He can be reached at michael.tsai@charter.com.