Australia hit by bird flu outbreak of highly pathogenic strain
China DailyFILE PHOTO: A person holds a test tube labelled "Bird Flu", in this picture illustration, January 14, 2023. "The bird flu situation in Australia is increasingly alarming, particularly due to the threat posed by the highly pathogenic avian influenza H5N1 strain, which has not yet reached the continent," said associate professor Dr Vinod Balasubramaniam, a molecular virologist with the Jeffrey Cheah School of Medicine and Health Sciences at Monash University's campus in Malaysia. Professor Adrian Esterman, head of Biostatistics and Epidemiology with the University of South Australia, said the current worldwide H5N1 outbreak has affected a wider range of bird species than previous outbreaks and has led to significant losses in both wild bird populations and poultry flocks worldwide. Esterman, from the University of South Australia, said the current outbreak of bird flu in Australia involves "different highly pathogenic avian influenza strains" – H7N3, H7N9, and H7N8). "The H5N1 bird flu is highly pathogenic for birds, and for the small number of humans infected over the last 20 years, the case fatality rate has been high …about 50 percent."