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 spike in exposures to rabies across the U.S. this summer has prompted the CDC to issue a health alert.

Pennsylvania has reported fourth deaths associated with measles, but the CDC has not included them in its national total — a conflict rarely seen in public health.

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, ...