Vaccinations for Thailand: what is recommended

Thailand has no mandatory vaccinations for entry for most travellers; the only certificate requirement is yellow fever, and only if you arrive from a country with yellow fever risk. Recommendations are a different matter, and this record summarises CDC-type guidance so you can have an informed talk with a travel health professional; it is not personal medical advice. The standard picture for Thailand: routine vaccines (MMR, tetanus-diphtheria, polio, flu, COVID-19, chickenpox) should be up to date, and measles vaccination is emphasised due to rising global cases. Hepatitis A is recommended for essentially all travellers, spread through food and water. Typhoid is recommended for most travellers, especially those eating widely, staying with locals, or visiting smaller places. Hepatitis B is recommended for travellers under 60 and worth considering above that, given medical or personal exposure possibilities. Situational vaccines: Japanese Encephalitis for long stays (a month or more) or heavy rural exposure; rabies pre-exposure for remote travel, animal work or limited access to care; cholera is not recommended as there is no active transmission. Malaria risk in Thailand is confined to forested border regions; the main tourist islands including Koh Samui do not require malaria prophylaxis. Timing matters: visit a travel clinic ideally 4-6 weeks before departure because some courses need multiple doses, though Hepatitis A and typhoid still help even last-minute.

Summary

No vaccinations are mandatory for Thailand (unless arriving from a yellow-fever country). CDC-style guidance recommends being up to date on routine vaccines, plus Hepatitis A for all travellers and Typhoid for most. Hepatitis B, Japanese Encephalitis and Rabies depend on your trip. See a travel clinic 4-6 weeks before departure.

Key facts

• No mandatory vaccines for Thailand entry (yellow fever certificate only if from a risk country)
• CDC-type guidance: routine vaccines up to date; Hepatitis A for all travellers; Typhoid for most
• Hepatitis B recommended for most travellers under 60
• Japanese Encephalitis and Rabies vaccines are situational (long/rural stays, animal exposure)
• No malaria prophylaxis needed for Koh Samui and main tourist islands
• Ideally see a travel clinic 4-6 weeks before departure

Local tips

• Book a travel clinic appointment as soon as your trip is confirmed
• Bring your vaccination record to the appointment
• Even last-minute, Hepatitis A and typhoid shots give meaningful protection
• This is general guidance; your itinerary and health history change the advice