Sydney, September 4 (Daily Kiran) : Sydney has confirmed its first case of the dangerous H5N1 bird flu strain. The announcement came on September 4, 2026, from New South Wales (NSW) Agriculture Minister Tara Moriarty. The strain was detected in a greater crested tern found on the Northern Beaches at the end of August.
This marks the first confirmed case in Sydney since the H5N1 strain reached the Australian mainland in June. Moriarty urged residents with pet birds or poultry to avoid contact with wild birds. Dog owners were also advised to ensure their pets do not scavenge dead animals or chase wild birds.
Local Mayor of the Northern Beaches, Sue Heins, expressed concern that this case might be the first of many. She emphasized the need for the community to prepare for the potential devastating impacts of the virus, which has already claimed millions of birds globally.
According to recent data from the federal government, there have been 468 confirmed cases of H5N1 bird flu across Australia, with 20 of those in New South Wales. The NSW government reassured the public that there have been no reports of the virus among commercial poultry flocks, caged birds, or livestock.
The World Health Organization (WHO) notes that H5N1 is one of several influenza viruses that cause avian influenza, a rapidly spreading respiratory disease in birds. There have been recorded infections in mammals, including humans, which can lead to a range of illnesses from mild to severe, and in some cases, can be fatal.
In humans, the main symptoms are respiratory in nature, but conjunctivitis and other non-respiratory symptoms have also been reported. Some individuals who tested positive for the H5N1 virus had no symptoms but had been in contact with infected animals or their environments.
The H5N1 avian influenza virus, specifically the “goose/Guangdong lineage,” was first identified in 1996 and has since spread among birds. Since 2020, a variant of this virus has caused significant mortality in wild birds and poultry across many countries. Initially spreading in Africa, Asia, and Europe, it reached North America in 2021 and Central and South America in 2022. The largest and longest outbreak of avian influenza in Europe and North America occurred between 2021 and 2022, with the virus persisting unusually long in wild birds.
Since 2022, there has been an increase in fatal outbreaks of influenza A(H5), including H5N1, in mammals. It is likely that additional outbreaks have occurred that went undetected or unreported. Both terrestrial and marine mammals have been affected, including farmed fur animals, seals, sea lions, as well as foxes, bears, otters, raccoons, cats, dogs, cattle, goats, and other wild and domestic animals.
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