The Australian government announced the withdrawal of 24 members from a research station, citing that the risk of avian flu contagion is considered low.
Macquarie Island, located in the South Pacific Ocean between Tasmania (southern Australia) and Antarctica, hosts an Australian research station and thousands of seals. These mammals are particularly vulnerable to the H5N1 avian flu, which recently reached the region. Although no cases have been detected on the island, authorities express concern about the possibility of deaths during the breeding period, which occurs between September and November.
In June, authorities had reported the death of thousands of seal pups due to avian flu in another remote Australian territory, the Heard and McDonald Islands.
Sean Sullivan, Deputy Secretary of the Department of Climate Change, Energy, Environment and Water, clarified that while the danger of H5N1 avian flu to humans is low, it is impossible to ignore the psychosocial risks associated with close proximity to a large number of affected animals.
According to the Department of the Environment, the 24 scientists and technical staff will be removed by the RSV Nuyina icebreaker in September or early October. The same agency added that it is crucial to minimize any extra risks that could compromise the well-being and proper functioning of the stations, given that the expedition members already reside and work in one of the planet's most challenging and isolated environments.
Before the identification of the first case in June, Australia was the only area globally unaffected by the H5 strain, which is lethal to both domestic and wild birds worldwide. On Friday, authorities reported a total of at least 341 confirmed or probable cases of H5 avian flu in Australia, with no records in domestic poultry or national agricultural production.
To contain the spread, large-scale vaccination campaigns were initiated the previous week, targeting bird populations, including the known blue penguins.