Hand sanitizer isn't as effective as handwashing at preventing the spread of norovirus, doctors and the CDC warn.

Cases of influenza, RSV, COVID-19 and the stomach bug — the so-called winter "quad-demic" — are rising in the Pittsburgh region.

The CDC has already reported a significant rise in clusters of infections, just two months into norovirus season.

Tis the season to wash your hands and watch what you eat. Norovirus, a vomit- and diarrhea-inducing stomach bug, is sickening Floridians through tainted surfaces and contaminated shellfish. The Sunshine State is one of 12 in the U.

The Food and Drug Administration said that consumers should avoid eating the possibly norovirus-contaminated oysters and a batch of broccoli possibly contaminated with listeria.

“The FDA is awaiting further information on the distribution of these oysters and will continue to monitor the investigation and provide assistance to state authorities as needed,” the agency said. The FDA says it will also update the safety alert if more information becomes available.

If COVID-19 taught us anything it's that washing your hands is often the best thing to do to prevent the spread of infections, including norovirus.