Evan Bush is a science reporter for 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.
On some affected farms, cows died at twice the normal rate. Andrew Bowman, a professor of veterinary preventive medicine at Ohio State University who was not involved in the new study, said the research reflects the experience veterinarians have had on many U.S. farms. “It matches with the clinical picture,” Bowman said. “That’s 100% what we’ve seen on dairy farms. This is just the first real published documentation.
France Dernières Nouvelles, France Actualités
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