Vaccinations for Asia: What You Actually Need (and What’s Optional)

Start with a travel health consultation

This is not optional. The vaccinations you need depend on your specific itinerary, activities, and medical history — and the requirements change as disease patterns shift. Visit a travel health clinic 4–6 weeks before departure for personalized advice. What I list here is a starting framework, not a prescription.

Routinely recommended for most of Southeast and East Asia

Hepatitis A: Transmitted through contaminated food and water. Strongly recommended for all Southeast Asia travel. Two doses provide lifelong protection.
Typhoid: Food and waterborne. Recommended for most Southeast Asia destinations, especially if eating street food. Injectable vaccine or oral course.
Hepatitis B: Many adults already vaccinated from childhood. Check your records. Strongly recommended if not immune.
Tetanus-Diphtheria-Pertussis: Ensure you’re up to date (booster every 10 years).

Destination-specific

Japanese Encephalitis: Recommended for rural areas in Japan, Korea, China, Southeast Asia (particularly if spending extended time near rice paddies or pig farming areas). Two-dose course.
Rabies: Consider if you’ll be in areas with limited medical access or if you’re working with animals. Pre-exposure course makes post-exposure treatment simpler.
Malaria prophylaxis: Risk varies enormously by country and region — required for rural Myanmar, Cambodia border areas, and parts of Indonesia; essentially no risk in urban Bangkok, Singapore, or Bali. Get specific advice for your route.

Japan specifically

Japan has no unusual vaccination requirements for tourists. Standard routine vaccinations (MMR, tetanus) plus Hepatitis A cover most risks. Japanese Encephalitis is rarely needed for typical urban tourist itineraries.