How common is norovirus on cruise ships? Here’s why you shouldn’t worry

What’s sneaky, super contagious and bound to cause diarrhea and vomiting? If you answered “norovirus,” you’d be correct. But what is it, and why is it often associated with cruises? An excessive number of news reports exist for norovirus cases on ships, making it seem to the unsuspecting public that cruise vessels are dirty or …
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