H5N1 Avian virus: Research indicates potential for human transmission

Recent research from Cornell University has shown that the highly pathogenic avian influenza virus H5N1 can be transmitted between mammals. Published in Nature, the study marks a significant development in understanding the virus’s epidemiology, revealing that H5N1, which initially spread among birds, has been transmitted to dairy cattle across several U.S. states. The virus has also been documented to transmit directly between mammals, including cows, cats, and other species. Although the 11 human cases of H5N1 infection reported in the U.S. since April 2022 have only shown mild symptoms, the possibility of the virus transmitting between mammals is a major concern for scientists. Experts suggest that the virus could mutate to become more adaptable to mammals, increasing the risk of human transmission. Hence the importance of containment and prevention strategies, such as free H5N1 testing programmes, early detection measures, enhanced biosecurity, and strict quarantines to contain the spread of the virus.