Stomach virus races through cruise ship passengers - CNN

highly contagious virus that causes stomach flu sickened about 220 passengers aboard a Norwegian Cruise Lines ship that returned Monday to Honolulu after its weekly seven-day cruise around the islands, officials said.
Lab tests confirmed a norovirus -- which causes nausea, vomiting and diarrhea -- aboard the Pride of Hawaii, said Janice Okubo, spokeswoman for the Hawaii Department of Health.
"It's one of the common viruses we've been seeing on cruise lines," Okubo said. "Most of the time, people recover."
The Norwalk-like virus infected about 9 percent of the ship's 2,500 passengers, and no one was hospitalized, the cruise line said. Virus symptoms typically last a day....