Bird Flu Symptoms In Humans 2025 Pdf. The viruses identified in north america in 2014 contained pieces of the highly pathogenic h5 viruses, but not the whole virus, like this outbreak. Varieties have mutated as it has jumped from birds to cattle and finally to people.
Nine workers involved in culling infected poultry at the. The 2014 bird flu incursion gradually fizzled out, but thatโs not likely to happen this time, he says, because the 2022 incursion is quite different from the last outbreak.