Bird flu virus has been a longstanding issue in Idaho, having plagued Idaho’s poultry and waterfowl populations for years. But this year’s strain is bringing something new—its ability to infect cows. Bird flu virus has been a longstanding issue in Idaho, having plagued Idaho’s poultry and waterfowl populations for years. But this year’s strain is bringing something new—its ability to infect cows. Agriculture Phys.org – latest science and technology news stories