For the first time in Australia, a highly pathogenic avian influenza virus has been detected in a dolphin.
According to the Operative Information Center-OMM, citing international media reports, the deceased dolphin was discovered near the town of Goolwa on the Fleurieu Peninsula in the state of South Australia.
Laboratory analysis of tissue samples collected from the animal confirmed the presence of the avian influenza virus. South Australia's Chief Veterinary Officer, Dr. Skye Fruean, stated that it is highly probable the dolphin contracted the virus after consuming an infected bird or through close contact with wild avian species.
While dolphins are known to be susceptible to such infections, documented cases of avian influenza in dolphins remain rare globally, as infected marine mammals are infrequently encountered in coastal areas. This incident highlights the ongoing spread of the virus across diverse wildlife populations.
On August 27, authorities also confirmed the detection of the avian influenza virus in a red fox found in Adelaide. Previous reports have documented infections in sea lions as well. Over the past 24 hours, an additional 46 cases of bird flu have been confirmed in South Australia, bringing the total number of confirmed cases in the state to 249. Despite the rise in wildlife cases, officials noted that no infections have been recorded among domestic poultry or other household pets to date.
Avian influenza, commonly known as bird flu, is a viral infection that primarily affects birds but can occasionally jump to mammals. The H5N1 strain has caused significant concern globally due to its high mortality rate in avian populations and its potential to impact broader ecosystems, prompting health authorities worldwide to increase surveillance and biosecurity measures.
