Federal health officials report that more than 120 passengers and crew on the Princess Cruises ship Ruby Princess become infected with a highly contagious stomach virus during a voyage. Multiple outlets, citing U.S. health agencies, say the illness occurred while the ship is on a 20-day round trip from San Francisco to Canada and Alaska. The ship docks in San Francisco, where federal officials confirm the outbreak among passengers and crew. Reporting identifies the illness as norovirus, a stomach virus known for spreading rapidly in close-quarters settings such as cruise ships. Across the coverage, the key points are consistent: the number of infected people is “more than 120,” the affected group includes both passengers and crew, the ship is Princess Cruises’ Ruby Princess, and the route and duration are a 20-day trip from San Francisco to Canada and Alaska. The articles do not provide additional details such as the number of cases by category, timing of symptom onset, or specific public health actions taken beyond the confirmation by health officials.