NewsNBC Bay Area — San FranciscoJuly 3, 2026San Francisco
Norovirus outbreak reported on Ruby Princess cruise ship
Federal health officials confirmed that 125 passengers and crew members contracted a stomach virus during a 20-day cruise from San Francisco. The ship, operated by Princess Cruises, implemented sanitation protocols following the outbreak.
Read the full story at NBC Bay Area — San FranciscoWhy It Matters
The incident highlights ongoing public health monitoring of cruise ship travel, where 125 individuals were affected by a contagious virus during a voyage involving over 4,000 people.
Key Facts
- 125 total people (102 passengers and 23 crew) were infected with norovirus on the Ruby Princess.
- The ship carried 3,032 passengers and 1,144 crew members on a 20-day round trip.
- The voyage departed San Francisco on June 12 and returned on Thursday.
- The outbreak was reported to the CDC on Saturday.
- Princess Cruises implemented enhanced sanitation protocols and disinfected the ship before its next departure.
- Norovirus symptoms include vomiting, diarrhea, and stomach pain, typically lasting three days.
- The CDC notes that hand sanitizer is not highly effective against norovirus; soap and water are recommended.
- There have been seven illness outbreaks on cruise ships within the CDC's jurisdiction so far this year.
Who's Mentioned
locationRuby Princess“The cruise ship where the outbreak occurred.”other23“Number of crew members infected.”other20“Duration of the cruise in days.”other3,032“Total number of passengers on board.”other102“Number of passengers infected.”other1,144“Total number of crew members on board.”organizationU.S. Centers for Disease Control and Prevention“Federal agency monitoring the outbreak.”other65“Age threshold for high-risk individuals.”organizationPrincess Cruises“Operator of the Ruby Princess ship.”locationSan Francisco“Port of departure and arrival for the cruise.”