Bird flu in cows shows how efficiently it has spread among mammals --study

Research on bird flu in cows shows how efficiently it has spread among mammals The more the virus spreads uncontrolled in mammals, the higher the chance it could evolve to be transmitted to humans. NBC News

New research into the ongoing bird flu outbreaks on dairy farms describes in unprecedented detail how efficiently the virus has spread among cows, and from cows to other mammals, including cats and a raccoon. 

It’s an indication that the virus is developing new capabilities that have bird flu experts worried. 

Bird flu has affected more than 100 million wild aquatic birds, commercial flocks and backyard poultry in the U.S. over the last several years. Its spread has had scientists on alert about the possibility that the virus could one day evolve to spread from person to person, igniting the next pandemic. ...