Staying safe and knowing how and where to access medical care when necessary is vital when traveling internationally:
mPassport - Connects you with local doctors, hospitals, and emergency medical care centers on-the-go. You can also translate important medical terms and phrases to better communicate with a foreign physician, as well as search for local pharmacies to find your medications.
Image: https://play.google.com/store/apps/details?id=com.hthworldwide.mPassport
CDC Health Information for International Travel 2016
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Survival of the Fittest: Keeping Yourself Healthy in Travel and Service Overseas
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Check out these sites, mostly from government organizations, that provide useful hints and tips for staying safe and healthy when visiting overseas: