Bacterial foodborne outbreaks in the U.S. increased while viral outbreaks declined between 2014 and 2022, with environmental ...

A CDC program tests wastewater from airplanes, looking for pathogens that may have hitched a ride with passengers on long-haul international flights.

Five years after the start of the first coronavirus outbreak in the U.S., we reflect on the images that stayed with us from a time marked by fear, loss, and uncertainty.