San Andreas, CA…As winter illness season peaks, the convergence of COVID-19, RSV, influenza, and norovirus has created what many are calling a “quad-demic.” These overlapping viral threats are straining communities, healthcare systems, and workplaces nationwide.

Recent data highlights the growing impact:

Influenza activity remains high, according to the California Department of Public Health. RSV activity is moderate. COVID-19 activity is low at this time.

The CDC reported 91 suspected or confirmed norovirus outbreaks during the week of December 5—more than any other week in 2024 and significantly higher than the same period in prior year and double from the same time period the year before.

Our Chief Medical Officer is available to offer timely insights on:

The local impact of these illnesses on Calaveras County. Practical tips to stay healthy this winter, including the role of vaccines, hand hygiene, and other prevention strategies.

“As we enter the peak season for respiratory and gastrointestinal illnesses, our communities are seeing a significant uptick of flu, RSV, COVID-19, and norovirus cases. These viruses can spread rapidly, especially in schools, workplaces, and crowded public spaces. It’s crucial now more than ever to stay vigilant — maintaining strict hygiene practices, staying home when sick, and considering vaccinations to protect yourself and others from potentially severe outcomes.”

— Dr. Athwal,, Chief Medical Officer

Charanjit Singh (CJ)
Director
Marketing, Communications and Philanthropy

Dignity Health
Mark Twain Medical Center
768 Mountain Ranch Road
San Andreas, CA 95249
209-754-2624 direct