CDC International Health Requirements and Recommendations
International Travel and Health- Vaccine requirements and health advice from the World Health Organization
IAMAT: International Association for Medical Assistance to Travelers- Provides English speaking physicians listed geographically
Travel Medicine, Inc.- Water purification, permethrin, etc.
Eastern Mountain Sports- Clothing, shoes, equiptment and supplies for outdoor recreation
REI- Clothing, shoes, and supplies for adventure travel
Evacuation Insurance- Most medical insurance plans do not cover evacuation/repatriation in the event of a medical emergency. You might consider purchasing this additional coverage for your trip. There are various vendors available.