The US Centers for Disease Control and Prevention is urging hospitals to accelerate advanced testing of people they suspect may have bird flu.

The CDC is calling for expanded testing of bird flu after a child in California tested positive for the virus despite no known contact with animals.

A child in San Francisco was recently confirmed to be the third human case of bird flu in the United States in which it’s unclear how the person got infected. Cases

Bay Area health experts are warning the public about a spike in a stubborn, highly contagious digestive virus spreading rapidly this winter. Norovirus, commonly known as the “stomach bug” or “winter vomiting disease,

A child in California is presumed to have H5N1 bird flu, according to the San Francisco Department of Public Health. Experts weigh in on the risk of a potential virus mutation.

The CDC has confirmed a positive bird flu case in a child in San Francisco, the second juvenile case of H5N1 in the country.

The CDC is monitoring developments closely because the United States is in the middle of flu season. With more patients flooding hospitals seeking care for seasonal flu, testing for avian influenza could slow down, and that could delay public health measures needed to prevent disease spread.