The winter vomiting disease, the leading cause of gastroenteritis.
Health officials warn crowd settings at the World Cup heighten risks of infectious diseases, with measles and flu among the leading threats. Surveillance is tight as officials monitor stadiums, airports and bars for early signs of outbreaks. Experts stress vaccination and rapid response as travel ramps up.
The Ruby Princess has reported a norovirus outbreak on its 20-day San Francisco–Alaska–Canada cruise, affecting more than 100 passengers and 23 crew members. Princess Cruises has implemented enhanced sanitation protocols and will disinfect the ship before its next voyage. CDC/OHSA are monitoring, with several other outbreaks reported on US‑based cruise ships this year.
Officials say 23 people in Minnesota have fallen ill with E. coli or salmonella, linked to alfalfa sprouts from Everything Sprouts (Calco/Everything Sprouts). Wisconsin cases also connect to the same supplier. Investigators are coordinating with federal authorities to pinpoint the source and scope of contamination.