Rising Bird Flu Cases in the U.S. Raise Concerns Over Human Transmission

Recent infections in Colorado poultry workers highlight the virus's spread to mammals and potential human health risks.

H5N1 avian influenza has infected 170 dairy herds across 13 states in the U.S.
Three new human cases were confirmed among Colorado poultry workers, bringing the total to 13 since April.
The virus has been found in various mammals, including cats and raccoons, raising pandemic concerns.
Health officials emphasize the low risk of human-to-human transmission but stress the importance of protective measures.
Development of vaccines for cows is underway, though experts debate their effectiveness and feasibility.