From parasites (yuck!) to malaria to the dreaded bird flu, international travelers are exposed to many serious diseases around the globe -- but it's better to be prepared than scared. Beyond popping the requisite dose of multivitamins and packing a tube of hand sanitizer before boarding a plane, travelers must receive the immunizations that are required or recommended for entering certain countries.

Although we're fans of complete cultural immersion, we draw the line at sharing the native infectious diseases of our gracious host countries (and bringing them back home with us!). To protect yourself and others from international maladies, make sure you're up to date on the immunizations you will need before your next adventure.

It's important to note -- take care of immunizations as soon as possible! Many vaccinations require several days or weeks to take effect; you will want to anticipate any "holding period" well before you are to travel. The CDC recommends that travelers visit their doctor four to six weeks before an international trip.

Epidemics and illness abroad are constantly changing. The best online resource for overseas health is the Centers for Disease Control's Travel Information Web site. We will provide you with an overview of immunizations, but be sure to check the CDC Web site for the latest up-to-date information on international health.

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