HONOLULU (KHON2) -- The health department regularly samples wastewater as part of their efforts to detect infectious diseases. This surveillance was able to detect avian flu in the past week. Get Hawaii's latest morning news delivered to your inbox, sign up for News 2 You The department is now investigating possible sources of the case. "H5N1, also called Highly Pathogenic Avian Influenza (HPAI), is one type of H5 avian influenza. Whether this detection is HPAI is unable to be determined from wastewater testing. The wastewater testing provides a signal for further investigation to determine whether this detection is H5N1-related, and an opportunity to reinforce prevention measures, particularly among persons at increased risk of exposure," DOH said in a news release Tuesday night. Kraft Heinz stops serving controversial Lunchables meals designed for schools: Here’s why DOH said, despite the detection, the overall risk to Oahu and state residents of H5N1 is low. They do, however, recommend the following best practices: Feelings of financial insecurity take us into the holiday season In general, do not touch birds, livestock, or wild animals that are sick or dead without personal protective equipment.  Residents are encouraged to report sick pets to their veterinarian. In addition, please contact the Animal Industry Division at Hawaiʻi 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 to report multiple or unusual illnesses or deaths in poultry, livestock, or wild birds or animals. 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. ‘Hurricane Paris’ brings home the crown, title Symptoms of avian flu may include fever, cough, sore throat and conjunctivitis. If any resident experiences these symptoms and has been in contact with sick or dead animals, contact DOH at (808) 586-4586. Find more Hawaii, Oahu, Maui and Kauai news here To date, Hawaii is the only state without avian flue detected in birds or animals.