A norovirus outbreak on the Star Princess cruise ship has affected over 150 individuals, including 104 guests and 49 crew members, who reported symptoms like vomiting and diarrhea. The Centers for Disease Control and Prevention (CDC) is monitoring the situation as the ship continues its Caribbean voyage, set to return to Fort Lauderdale on March 14. Princess Cruises stated that a “limited number of individuals” experienced mild gastrointestinal illness during the voyage that began on March 7.
In response to the outbreak, the cruise line implemented extensive sanitation measures, including disinfecting the entire ship and isolating those feeling unwell to ensure the comfort of other guests and crew. The CDC’s Vessel Sanitation Program is conducting an environmental assessment and outbreak investigation to assist in controlling the situation.
This incident is part of a broader trend, as the CDC reported two outbreaks of gastrointestinal illness on cruise ships this year, with 17 of 23 outbreaks in 2025 linked to norovirus. While often associated with cruises, norovirus outbreaks account for only about 1% of all reported cases, largely because such outbreaks in communal settings are more frequently diagnosed and reported.
Health experts emphasize that outbreaks can occur in various environments, including daycares and nursing homes, highlighting the importance of vigilance in close-contact situations.
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