Guam Travel Health Advice
Although no vaccinations are required for travel to Guam hepatitis A and hepatitis B vaccinations are recommended for all travellers; a typhoid vaccination is recommended for those who plan to eat and drink outside of major restaurants and hotels; a Japanese encephalitis vaccination is recommended for those planning to spend time in rural areas or outdoors; an MMR (measles, mumps, rubella) vaccination is recommended if not previously given; and revaccination for tetanus-diphtheria is recommended every 10 years.
Do not drink tap water in Guam unless it has been boiled, filtered or chemically disinfected, and don't have ice in your drinks. Avoid food from street vendors and raw or undercooked meat and fish. Make sure fruit is peeled. There are medical facilities available on the island but for life-threatening injuries or diseases you may well need to be transferred overseas to receive treatment; comprehensive travel insurance is recommended. It is best to bring along any medication you require, with a signed and dated letter from your doctor detailing the medication you need and why.