The Centers for Disease Control and Prevention last month raised its benchmark for levels of the Covid virus in wastewater, adjusting a key metric for assessing the disease’s transmission. As a result, a level that would previously have been classified as high transmission, may now register as moderate instead.

A spike in rabies cases among animals this summer has led to a rise in human exposures across the country, the Centers for Disease Control and Prevention warned Thursday. In a new health advisory, the CDC urged doctors to be on the lookout for possible ...

A laboratory worker’s unexplained death has prompted a CDC response, with a critical question still unresolved: what caused her illness? The Centers for Disease Control and Prevention said Tuesday, Oct.