The World's Worst Travel Diseases
Photo: Courtesy of the Center for Disease Control
Norovirus
What it is: A virus spread through inadequately treated food or water that can cause acute gastroenteritis. The CDC attributes an estimated 23 million illnesses each year in the U.S. to norovirus.
Where it’s found: Throughout the world. Outbreaks aboard cruise ships have received lots of publicity, but because it’s easily spread, norovirus can appear anywhere where there are lots of people in close quarters.
How to avoid it: Avoidance can be tough, since norovirus is common and easily transmittable. Keep your hands washed and try to avoid “ready-to-eat” cold foods and raw shellfish. (See the CDC’s recommendations on safe food and water.)
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