SAN FRANCISCO -- Over 300 people came down with a highly contagious form of stomach flu during a worldwide cruise of the Queen Elizabeth 2.
The Centers for Disease Control and Prevention said the proportion of passengers sickened was unusually high -- almost 17 percent. Only four are still said to be ill.
The ship, which left New York on Jan. 8, is now docked in San Francisco. The CDC boarded it last Friday in Acapulco, Mexico, to investigate.
A CDC official said the emergency sanitation measures the QE-2 adopted when the virus broke out helped contain the outbreak. The measures included disinfecting casino chips and eliminating self-service at the ship's buffet.