Complete Travel Health Guide: Vaccinations, Insurance & Staying Well Abroad
Everything you need to know about travel health — vaccinations, insurance, common illnesses, and finding medical care abroad.
Start Planning Your Health at Least 6–8 Weeks Before Travel
Some vaccinations require multiple doses spread over weeks, and others need time to become effective. Visit a travel medicine clinic or your GP at least 6–8 weeks before departure — earlier is better for long or high-risk itineraries. Bring a list of your destination countries, planned activities (trekking, swimming, wildlife contact), and your vaccination history.
- Yellow fever vaccination requires a certificate recognised internationally
- Malaria prophylaxis must be started before arrival in endemic areas
- Japanese Encephalitis and Rabies vaccines require 3-dose series over weeks
Essential Vaccines for International Travel
Some vaccines are recommended for almost all international travellers regardless of destination: Hepatitis A (foodborne illness spread by contaminated food/water), Typhoid (especially for South Asia, Southeast Asia, Africa, and Latin America), and an up-to-date Tetanus-Diphtheria booster. Check whether your destination requires Yellow Fever vaccination as a condition of entry — many Sub-Saharan African and Amazonian South American countries do.
Travel Insurance — What to Look For
The single most critical insurance coverage for international travel is emergency medical and evacuation — which can cost $50,000–$500,000 without coverage. Ensure your policy includes: emergency medical treatment with no cap or a cap of at least $1 million, emergency medical evacuation to the nearest adequate facility, 24/7 assistance line, and repatriation. Trip cancellation/interruption coverage and baggage loss are secondary but valuable.
- World Nomads is excellent for adventure travellers
- SafetyWing offers affordable monthly coverage ideal for long-term travellers
- Check your credit card benefits — some premium cards include substantial travel insurance
Staying Healthy: Food and Water Safety
Traveller's diarrhoea affects 30–70% of all international travellers and is caused by eating or drinking contaminated food or water. The golden rules: in high-risk destinations (India, Southeast Asia, Central America, Africa), drink only bottled or purified water, avoid ice in drinks, eat only cooked food served hot, and peel all fruits yourself. Carry oral rehydration salts — dehydration from diarrhoea, not the illness itself, is the primary danger.
Sun, Altitude, and Climate Adaptation
Altitude sickness (Acute Mountain Sickness) affects many travellers above 2,500 metres — in destinations like Nepal, Peru, Bolivia, and parts of the Himalayas. Ascend gradually (no more than 500m/day above 3,000m), stay well hydrated, avoid alcohol in the first 48 hours, and consider prophylactic Acetazolamide. For sun protection, a minimum SPF 50 sunscreen, UV-protective sunglasses, and wide-brimmed hats are non-negotiable in tropical destinations.
Finding Medical Care Abroad
Before you travel, locate the nearest hospital or international clinic to your accommodation and save the address offline. The International Association for Medical Assistance to Travellers (IAMAT.org) maintains a global database of English-speaking doctors. Your travel insurance provider's 24/7 assistance line can also direct you to vetted medical facilities. In major cities, international-standard private hospitals typically offer better care than government facilities for tourists.