Cases of a stomach virus have been on the rise across the United States in recent months, according to new data released by the Centers for Disease Control and Prevention (CDC).
Around 14 percent of tests for norovirus came back positive for the most recent week that ended Nov. 15, the CDC said in a report updated on Nov. 21. That’s about double from roughly three months ago in mid-August.
A norovirus case is usually characterized by the sudden onset of vomiting and diarrhea, and outbreaks occur in areas where people are close together. Cruise ships, nursing homes, prisons and jails, and schools often see outbreaks….