The deadly H5N1 strain of bird flu has been detected in seabirds across two Australian states, according to a report by Phys.org. This strain, known for its high mortality rates, poses significant risks to backyard chickens and domestic cats.
The discovery underscores the expanding geographic reach of H5N1, which has previously caused outbreaks in wild bird populations globally. The virus often spreads through migratory birds and can jump to mammals, making it a persistent threat to both animal and public health.
Veterinary experts emphasize that H5N1 is nearly always fatal in domestic poultry and can be deadly for cats exposed to infected birds. Backyard flock owners are urged to take immediate precautions, such as restricting outdoor access and reporting sick or dead birds.
While the immediate risk to humans remains low, the virus's presence in seabirds signals a new front in the ongoing battle against avian influenza. Authorities are monitoring for potential spillover events into other wildlife or domestic animals.
The detection highlights the need for robust biosecurity measures. No human infections or commercial poultry outbreaks have been reported yet.