
Bird Flu in Human Has Mutation, but Risk Is Low: CDC
The avian influenza that infected a person in Texas has a change from the influenza from animals, according to the U.S. Centers for Disease Control and Prevention (CDC). Genomic sequencing from the patient showed “one change (PB2 E627K) that is known to be associated with viral adaptation to mammalian hosts,” the CDC said in a summary of the testing results. But that change has been recorded before in humans and animals, “with no evidence of onward spread among people,” the agency added. Rajendram Rajnarayanan, an assistant dean of research at Arkansas State University, said on X, formerly Twitter, that the mutation alone “is not sufficient to enable efficient human to human transmission” but that detection of the change “highlights the value of increased genomic surveillance and rapid dissemination of sequence data.”...
