Norovirus Sickens 4% of People Onboard Princess Cruises Ship

Norovirus usually impacts a relatively small portion of passengers and crew onboard a cruise ship, but the frequency with which it happens is troubling for any traveler considering the trip. More than 170 people have become sick with vomiting and diarrhea from norovirus aboard a Princess Cruises ship, the Centers for Disease Control and Prevention said.

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