USDA confirms first H5N1 case in US alpacas from infected chickens, raising concerns of broader spread and urging vigilance despite limited human cases ...

Concerns mount as research reveals H5N1 bird flu's potential transmission through raw and flash-pasteurized milk, prompting urgent safety measures ...

Whooping cough outbreaks among vaccinated students were reported at Sacred Heart Cathedral Preparatory in San Francisco; health officials worked to contain the spread without any severe cases reported. ...