A strain of bird flu known as H5N1 or highly pathogenic avian influenza has made a worrying leap to cattle herds across the US over the past month. This development has sparked “enormous concern” among health experts, including the World Health Organization’s (WHO) chief scientist, who warned of the virus’ “extremely high” mortality rate in humans.
This one isn’t human to human transmittable. It jumped to one human, but can’t infect other humans from there, so unless it mutates in a bad way it won’t start a pandemic. That’s very unlikely with one infection, but there will be more if it stays on animal farms.