New study sparks debate about whether H5N1 virus in cows is adapted to better infect humans

New study sparks debate about whether H5N1 virus in cows is adapted to better infect humans

A study published Monday provides new evidence that the H5N1 virus currently causing an outbreak of bird flu in U.S. dairy cattle may be adapted to better infecting humans than other circulating strains of the virus, a result that is already courting controversy among the world’s leading flu researchers. Across the globe, different influenza viruses are constantly circulating in many different kinds of animals. One of the things that determines what kind of animal a given flu virus can infect …