Australia has initiated the rollout of a bird flu vaccine in an effort to safeguard its native bird population against the escalating H5N1 outbreak. The federal government announced the deployment of 1,500 vaccine vials, valued at approximately $2 million, as part of a broader strategy to mitigate the spread of the virus.
Agriculture Minister Julie Collins stated that Australians should anticipate further and more widespread instances of the avian influenza, including mass mortalities among birds. "We have been very clear that this will continue to spread across the country," Collins told reporters in Canberra. "We cannot stop the H5 bird flu from spreading amongst wild birds. But we can take action to protect the species most at risk, and the vaccination is now part of that response."
Experts, however, express concern about the potential scale of the outbreak. Invasive Species Council chief executive Jack Gough warned that one in five native mammal and bird species in Australia are listed on a federal environment department 'doom list' due to their vulnerability to bird flu. "We have a tsunami about to break over them from this H5N1 bird flu," Gough said. "We are not going to be able to stop bird flu ripping through our wildlife populations and that's going to be devastating."
Australia has recorded 231 cases of bird flu since the virus was first detected in June. The government is shifting its reporting focus from individual bird counts to confirmed H5 events, new locations, and affected species in emerging risk areas, as counting individual cases is no longer considered an effective measure of the disease's spread.
Chief Veterinary Officer Beth Cookson cautioned that the vaccine is not a singular solution and its effectiveness in wild populations remains uncertain. "It is not a standalone solution. Biosecurity will remain important, the protection of these species," Cookson said. She added that national preparedness efforts over the past 18 months have focused on ensuring safety and efficacy data were available.
Concerns have also been raised regarding government funding for environmental programs. Gough noted that despite the identification of high-risk species, funding for on-ground environmental initiatives saw a reduction in the latest budget. He fears that vaccines might be prioritized for the poultry industry, which has not yet been infiltrated by the strain, over wildlife.
The vaccine requires two doses to be effective. While efforts will be made to vaccinate wild birds where feasible, the priority will be placed on birds in captivity. States and territories are tasked with providing the federal government with a list of priority animal species requiring vaccination.
Influenza vaccination expert Mohammed Alsharifi from Adelaide University emphasized the importance of the vaccine rollout for species conservation, given the virus's high lethality. He also noted the potential for viral mutation, underscoring the value of existing immunity against the circulating strain.
