No vaccine is legally required to enter Thailand unless you are arriving from a country with yellow fever. Medically, make sure your routine vaccines are current, and for most travellers add hepatitis A and typhoid, both spread through contaminated food and water, and consider rabies because Thailand is rabies-endemic. Longer stays or higher-risk plans may add hepatitis B and Japanese encephalitis. Most travel vaccines need two to four weeks before departure to work, so book early. If you are already in Bangkok and have not been vaccinated, it is rarely too late to start.
Clinically reviewed by Dr. Ponlawat Pitsuwan, Physician, Doctor Bangkok. Last reviewed: July 2026.
The question I hear most often, from travellers who are already in Thailand as well as those still planning, is a simple one: which of these vaccines do I actually need? The honest answer is that it depends on where you are going, how long you are staying and what you plan to do, but a clear pattern covers most people. This guide sorts travel vaccinations for Thailand into what almost everyone should have, what depends on your trip, and the one vaccine, rabies, where the timing of a bite can change everything.
Start with your routine vaccines
Before any travel-specific vaccine, check that your routine vaccinations are up to date, because these protect against illnesses that still circulate in Thailand. That means measles, mumps and rubella, diphtheria, tetanus and pertussis, polio, and an annual influenza shot. Tetanus in particular matters for travellers, since a dirty cut or an animal bite is a real risk on the road, and the booster is due every ten years. If you are unsure of your history, we can review it and top up whatever is missing. Our pages on the tetanus vaccine and the influenza vaccine explain each one.
Recommended for most travellers to Thailand
Two vaccines are recommended for almost everyone visiting Thailand because they protect against infections spread by contaminated food and water, which no amount of care entirely avoids. Hepatitis A is the priority, a liver infection that is common across Southeast Asia and easily prevented; the first dose gives good protection for the trip, and a second dose months later extends it for years. Typhoid, a bacterial infection caught the same way, is worth having if you plan to eat widely, stay for more than a couple of weeks, or travel outside the main tourist areas. Rabies belongs in this group too for many travellers, and it has its own section below because the decision is more involved. The table sets out who each vaccine is for and the schedule.
| Vaccine | Who it is for | Schedule |
|---|---|---|
| Hepatitis A | Almost all travellers | 1 dose before travel; 2nd dose 6 to 12 months later for long-term protection |
| Typhoid | Wider eating, longer or rural trips | Single injection, booster about every 3 years |
| Rabies (pre-exposure) | Longer stays, cyclists, children, rural travel | 2 doses, days 0 and 7 |
| Hepatitis B | Longer stays, medical or intimate exposure | 3 doses over 6 months (accelerated schedules exist) |
| Japanese encephalitis | Stays over a month or rural, rainy-season travel | 2 doses, 28 days apart |
| Influenza | All travellers, annually | Single annual dose |
Our detailed pages cover the hepatitis A vaccine, whether you need hepatitis A for Thailand, and typhoid fever itself.
Vaccines for longer or higher-risk stays
Some vaccines are not needed for a short beach holiday but make sense for a longer or more adventurous trip. Hepatitis B, spread through blood and bodily fluids, is worth considering if you are staying for an extended period, might receive medical or dental treatment, plan to get a tattoo, or expect new sexual partners; you can read more on the hepatitis B vaccine page. Japanese encephalitis, a mosquito-borne infection linked to rural and agricultural areas, is recommended mainly for stays over a month or for extensive time in the countryside during the rainy season. Human papillomavirus vaccination is worth discussing for eligible adults for its long-term protection rather than for the trip itself, as covered in our HPV vaccine guide. Yellow fever is not a risk in Thailand and is only relevant as a certificate if you are arriving from a country where the disease is present.
Rabies: the vaccine where timing changes everything
Rabies deserves its own section because Thailand is rabies-endemic, stray dogs and monkeys are common, and rabies is almost always fatal once symptoms begin. There are two ways the vaccine is used. Pre-exposure vaccination, given as two doses a week apart before any contact, does not make you immune on its own, but it simplifies and shortens the treatment you need after a bite and removes the need for rabies immunoglobulin, which can be hard to obtain. Post-exposure treatment is what you receive after a bite or scratch: if you were vaccinated beforehand you need only two further doses, while if you were not, you need a longer course and possibly immunoglobulin. Either way, the trigger is any bite or scratch from a mammal that breaks the skin, however minor it looks. Wash the wound with soap and water for fifteen minutes and come in the same day. Our pages explain the rabies vaccine schedule, the difference between pre and post-exposure treatment, whether the rabies vaccine is worth getting, and exactly what to do after a dog bite in Bangkok.
What about a dengue vaccine?
Dengue is the main mosquito-borne infection in Thailand, and a vaccine exists, but it is not a routine recommendation for every traveller. The newer dengue vaccine is used in some countries for people who live in or travel repeatedly to dengue-endemic areas, and eligibility can depend on whether you have had dengue before. For most short-stay visitors, daytime mosquito protection remains the more practical defence. It is a genuine discuss-with-your-doctor decision rather than a standard travel jab, and our article on the dengue vaccine explains where it fits.
How far ahead should you plan?
Ideally, see a doctor four to six weeks before you travel. Most vaccines need at least two weeks to produce protection, and courses given over several doses, such as hepatitis B or the full rabies schedule, take longer to complete. That said, a last-minute or even in-country appointment is still worthwhile, because a single dose of many vaccines gives useful protection and accelerated schedules exist for some. Being late is not a reason to skip vaccination altogether. Our guide on how long before travelling to get vaccinated covers the timing in detail, and a pre-travel health check pulls it all together.
See a doctor if: you have been bitten or scratched by any animal and need rabies treatment, which is urgent and should not wait; you are unsure which vaccines you have had or which you need for your trip; you are pregnant, have a weakened immune system or a long-term health condition, since some vaccines need tailoring; or you develop a high fever, a spreading rash or feel very unwell after arriving, which needs assessment rather than another vaccine.
Prevention and early detection
Vaccination is only one half of staying well, and it works best alongside sensible day-to-day precautions. Even after your hepatitis A and typhoid shots, stick to bottled or filtered water and food that is cooked fresh and served hot, because vaccines reduce risk rather than remove it. Use mosquito repellent in the daytime to lower your dengue and Japanese encephalitis risk. Keep a record of the vaccines you receive, ideally a small vaccination card, so any doctor treating you later knows your status, which is especially useful for rabies. If you are staying long-term, book a review before your protection lapses, since boosters for tetanus, typhoid and others fall due on a schedule. Prevention, in other words, is the vaccine plus the habits that back it up.
Summary
For most people, travel vaccination for Thailand comes down to a short list: confirm your routine vaccines, add hepatitis A and typhoid, and make a considered decision about rabies based on your plans. Longer or more adventurous trips bring hepatitis B and Japanese encephalitis into the picture, and dengue vaccination is a specific conversation rather than a default. The single most important message I give patients is about rabies: the vaccine you have before a trip is convenient, but the treatment you seek promptly after a bite is what saves lives, so never wait to have a bite looked at. Book a few weeks ahead if you can, come in anyway if you cannot, and we will build the right plan for your trip.
Frequently asked questions
Which vaccines do I really need for Thailand?
Confirm your routine vaccines, then add hepatitis A and typhoid, which almost every traveller should have, and consider rabies depending on your plans. Longer or rural stays may add hepatitis B and Japanese encephalitis. No vaccine is legally required unless you are arriving from a yellow fever country.
Is it too late to get vaccinated once I am already in Thailand?
Usually not. A single dose of many travel vaccines gives useful protection, and accelerated schedules exist for some. It is always worth coming in even mid-trip, particularly for hepatitis A, typhoid or rabies pre-exposure, rather than going without protection entirely.
Do I need a rabies vaccine before I travel?
It is strongly worth considering for longer stays, rural travel, cyclists and children, because it simplifies treatment after a bite. It is not essential for a short city trip, but you must still seek post-exposure treatment quickly after any animal bite whether or not you were vaccinated beforehand.
Do I need a yellow fever vaccine for Thailand?
Not for the disease itself, as yellow fever does not occur in Thailand. You only need proof of yellow fever vaccination if you are arriving from a country where yellow fever is present, in which case a certificate may be required at entry.
How far in advance should I get my travel vaccines?
Aim for four to six weeks before departure, since most vaccines take about two weeks to work and multi-dose courses take longer. If you have left it late, come in anyway, because partial protection is better than none and some schedules can be accelerated.
Are travel vaccines safe if I am pregnant or have a health condition?
Many are, but some need tailoring or should be avoided, so this is a conversation to have with a doctor rather than a decision to make from a list. Bring details of your pregnancy, medications or condition and we will choose the vaccines that are appropriate for you.
Sources
Centers for Disease Control and Prevention (CDC), Travelers’ Health: Thailand and rabies guidance. World Health Organization (WHO), position papers on rabies, hepatitis A and Japanese encephalitis. NHS, Travel vaccinations. These sources informed the schedules and recommendations above.