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.

Weekly reports of COVID-19 and influenza show rising activity, but it’s the combination of multiple infectious diseases at once that’s causing problems.

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.

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,