That's funny, my dad picked up dengue fever in S. America an entire decade before it was ever contracted in the US. So yeah, you can pick up diseases anywhere, but there are some you can pick up in these exoctic locales that I'd just rather not know.
How is it racist that some folks don't want to go to a place where they have to cover up like their bodies are shameful or where they are targets for kidnapping and death b/c they are Westerners?
Personal choice isn't racist.