Travel Health Online About this site: No matter what corner of the world you're headed for next, Travel Health Online has advice on how to stay healthy while on the road. This site offers planning tips, ways to avoid common travel ailments, tips for water safety, suggested immunizations, and regional health precautions for more than 200 countries. (http://www.tripprep.com/)   Pluses: Sections on often-overlooked subjects like beach safety and protection from insects.   Minuses: Perusing this bare-bones, text-only site is like reading a textbook.   Best feature: The vaccine page provides detailed information on disease risk, timing and dosage, side effects, and additional precautions to take.

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