Los Angeles Times

Travel dilemmas: Welcome-home illnesses

You've returned from vacation, and that post glow is fading fast. Your nose is dripping, you're sneezing and your throat is sore. Or your stomach is upset and you have diarrhea. Why is this your reward for travel, and how can you prevent it? And what if your symptoms don't go away?

Chances are it's not the return home that made you sick, as we sometimes believe. Familiarity may breed contempt, but it also may give you a certain immunity.

"When traveling ... one is exposed to viruses to which they are not

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