It’s sick season in Philly: the cold-weather months when cases of respiratory illnesses and the “stomach bug” norovirus rise. Some public health experts have called the combination of viruses circulating “the quad-demic” — referring to a wave of illness from the simultaneous spike in COVID,

If you've woken up with sweaty palms, shaky hands and a grumbling stomach begging for relief, you're not alone. The new year brought a warm winter, new habits and an uptick of norovirus — commonly called the stomach flu.

Four illnesses are filling Minnesota hospitals, and health leaders are warning you that Minnesota is dealing with a "quad-demic." This year, Minnesota has nearly reached 1,800 hospitalized influenza cases this season.

Cases of various illnesses are on the rise as snow and cold weather keep people indoors. Outbreaks of norovirus, also called the winter vomiting bug, are surging throughout the U.S. Hamilton County Public Health Medical Director Steve Feagins says increased cases of the flu, COVID and RSV are also expected during this time of year.

Common and highly contagious illnesses are reaching several-month highs. Norovirus has almost reached a several-year record.

Across the nation, the healthcare system is taking a beating as the "quad-demic" continues to strain resources and slow down patient care. WCCO's Frankie McLister shows us how Minnesota hospitals are being affected.

Several viruses are causing illnesses in Ohio and the U.S. See the symptoms for COVID-19, RSV, flu, norovirus and bird flu.

Wastewater levels of RSV are "moderate" nationwide for the week ending Dec. 28, according to the CDC's wastewater monitoring systems. Wastewater levels of RSV rose to moderate in mid-December – the first time it reached moderate since January 2024.