This section includes practical information on how to avoid potential health problems. Some of these recommendations are common-sense precautions; others have been scien-tifically documented.

Personal and specific preventive measures against certain diseases may require advance planning and advice from a physician concerning immunization and prophylaxis. If more specific information is needed, travelers should contact their local health department or physician.

Travelers who take prescription medications should carry an adequate supply accompa-nied by a signed and dated statement from a physician; the statement should indicate the major health problems and dosage of such medications, to provide information for medical authorities in case of emergency. The traveler should take an extra pair of glasses or lens prescription, and a card, tag, or bracelet that identifies any physical condition that may require emergency care.