No vaccination is required to enter Thailand unless you arrive from a country with yellow fever. Health agencies do advise most travelers to be up to date with routine vaccines and to consider hepatitis A, and some travelers are advised to consider more, including typhoid, hepatitis B, rabies and Japanese encephalitis. Which ones you need depends on your history, your itinerary and how long you stay, so book a travel health appointment well before you go.
This page summarizes what two official sources say: the US Centers for Disease Control and Prevention (CDC) and TravelHealthPro, the UK service run by the National Travel Health Network and Centre for the UK Health Security Agency. The NHS in England sends travelers to TravelHealthPro for country advice. The two do not always agree, and where they differ we say so.
We are not doctors, and a summary cannot replace a consultation. Use this page to know what to ask, then let a travel clinic, your doctor or a pharmacist with a travel health service decide with you.
Vaccines for Thailand at a glance
- Required for entry
- Only yellow fever, and only if you arrive from (or spent more than 12 hours in transit in) a country with yellow fever risk
- Most travelers
- Routine vaccines up to date; hepatitis A (CDC and UK); tetanus (UK); typhoid (CDC)
- Some travelers
- Hepatitis B, rabies, Japanese encephalitis, typhoid (UK), chikungunya, dengue
- Not recommended
- Cholera (CDC: no active transmission)
- When to book
- CDC: at least a month before; NHS and TravelHealthPro: 4–6 weeks; UK FCDO: at least 8 weeks
The yellow fever certificate rule
There is no yellow fever in Thailand, and travelers coming directly from the United States, the UK or Europe do not need the vaccine. The rule catches people on longer trips. According to the CDC and TravelHealthPro, Thailand requires a yellow fever vaccination certificate from travelers aged 9 months or older who arrive from a country with risk of yellow fever transmission, including those who spent more than 12 hours in transit at an airport in such a country.
That mainly affects people coming from parts of Africa and South America, for example after a safari or a trip to Brazil. Since 11 July 2016 the World Health Organization treats a yellow fever certificate as valid for life. If this applies to you, carry the original International Certificate of Vaccination or Prophylaxis with your passport.
Routine vaccines first
Both agencies start with the basics. The CDC asks travelers to be up to date with routine vaccines before every trip, naming chickenpox, diphtheria-tetanus-pertussis, flu, measles-mumps-rubella (MMR), polio and shingles, plus COVID-19 for those eligible. Since May 2025 the CDC has a global notice on measles and says all international travelers should be fully vaccinated against it.
TravelHealthPro lists tetanus for most travelers, with a booster if the last dose was more than ten years ago and you are going somewhere medical facilities may be limited. Coral cuts, scooter falls and animal scratches can all happen on a beach holiday, so this is not a box to skip.
Hepatitis A and typhoid: food and water
Hepatitis A is the one vaccine both agencies recommend for nearly everyone. The CDC recommends it for unvaccinated travelers aged one or older; TravelHealthPro recommends it for all previously unvaccinated travelers and notes it gives long-lasting protection. Both diseases spread through contaminated food and water, which is why our guides to eating street food safely and tap water in Thailand are worth reading too.
Typhoid is where the two sources differ. The CDC lists typhoid vaccine as "recommended for most travelers" to Thailand. TravelHealthPro puts it under "some travellers": people at higher risk, such as those visiting friends and relatives, frequent or long-stay travelers and those staying where food hygiene is poor. Neither treats the vaccine as complete protection.
Rabies: dogs, monkeys and the treatment after a bite
Rabies is present in Thailand. The CDC says dogs infected with rabies are sometimes found there, and TravelHealthPro says it has been reported in domestic animals and that bats may carry rabies-like viruses. Our article on dangerous animals in Thailand covers stray dogs and temple monkeys; this section is about the vaccine.
Pre-exposure vaccination is a personal decision. TravelHealthPro recommends it for travelers at higher risk, including long-stay travelers (more than a month), people planning activities such as running or cycling, people working with animals and those going where post-exposure care is hard to reach. The CDC asks you to discuss it with a provider, considering your activities and how quickly you could get treatment.
After any bite, scratch or lick from a mammal, wash the wound and see a doctor the same day. TravelHealthPro advises thorough cleaning and urgent local medical assessment even for a wound that looks trivial. The CDC says rabies vaccines for post-exposure treatment are typically available throughout most of Thailand. Being vaccinated beforehand simplifies that treatment; it does not replace it.
Japanese encephalitis: rural stays and the north
Japanese encephalitis (JE) is spread by mosquitoes that mostly bite between dusk and dawn in rural areas, especially near rice fields and pig farms. TravelHealthPro says JE occurs countrywide in Thailand, with risk all year and seasonal peaks from May to October, especially in the north, including the Chiang Mai valley. If your trip centers on Chiang Mai and the countryside around it, mention that at your appointment.
The CDC recommends the vaccine for people moving to an area with JE, people spending a month or more there, and frequent visitors. It suggests considering it for shorter trips with higher-risk activities, such as visiting rural areas, hiking or camping, or staying without air conditioning, screens or bed nets. It does not recommend it for short trips to cities. A full course takes time, so this is one of the reasons to book early.
Hepatitis B, chikungunya, dengue and TB
The CDC recommends hepatitis B for unvaccinated travelers under 60. TravelHealthPro says it could be considered for all travelers and is recommended for those at higher risk: people who may have unprotected sex, long-stay travelers, people playing contact sports, and anyone likely to need medical or dental treatment during the trip.
The CDC flags a raised chikungunya risk in Thailand and says the vaccine may be considered for stays of six months or more. TravelHealthPro lists it for some travelers, such as those going to an outbreak area or staying long term. A dengue vaccine exists, but UK advice limits it mainly to people who have already had dengue; our page on dengue fever in Thailand explains the details. TravelHealthPro also lists BCG for tuberculosis for some long-stay travelers at higher risk.
Malaria: tablets only for some border areas
Malaria is not a vaccine question, but it comes up at the same appointment. The CDC recommends preventive tablets only for travelers to provinces bordering Myanmar, Cambodia (except Buri Ram) and Malaysia, and bite avoidance elsewhere; it reports no transmission on the Krabi islands or in Pattaya City. TravelHealthPro rates the risk as low in rural, forested border areas and very low elsewhere, and advises awareness and bite avoidance. In other words, most visitors to Bangkok, Chiang Mai and the beaches do not need tablets. Avoiding bites matters for malaria, dengue and JE alike; see our guide to avoiding mosquito bites.
When and where to get vaccinated
Advice on timing varies: the CDC says see your doctor at least a month before the trip, the NHS and TravelHealthPro say 4 to 6 weeks, and the UK Foreign Office says check at least 8 weeks ahead. Some vaccines need several doses spread over weeks, so earlier is better, but a late appointment is still worthwhile.
In England, the NHS says hepatitis A, typhoid and polio (in the combined booster) are available free at a GP surgery after a risk assessment, while hepatitis B, Japanese encephalitis and rabies are usually paid for privately. In other countries, ask your doctor or a travel clinic. If you are already in Thailand, ask a hospital or clinic; our guide to hospitals in Thailand explains how they work. Keep a record of what you have had, and make sure your travel insurance covers medical treatment abroad.
Frequently asked questions
Are any vaccinations required to enter Thailand?
Only a yellow fever certificate, and only for travelers aged 9 months or older who arrive from a country with yellow fever risk or spent more than 12 hours in transit there. Travelers coming directly from the US, the UK, Europe or most of Asia do not need it.
Do I need a rabies vaccine for Thailand?
Not everyone. UK advice recommends pre-exposure rabies vaccination for higher-risk travelers, such as long stays of over a month, running or cycling, or working with animals. Everyone, vaccinated or not, should get urgent medical care after any animal bite or scratch in Thailand.
Do I need malaria tablets for Thailand?
Usually not. The CDC recommends tablets only for provinces bordering Myanmar, Cambodia (except Buri Ram) and Malaysia, and UK advice recommends bite avoidance rather than tablets. Discuss your exact route with a travel health professional.
How far in advance should I get vaccinated for Thailand?
The CDC says at least a month before you travel, the NHS says 4 to 6 weeks, and the UK Foreign Office suggests checking at least 8 weeks ahead. Some vaccines, such as Japanese encephalitis and rabies, need more than one dose, so start early if possible.
Sources
- CDC – Travelers' Health: Thailand (checked October 2026)
- TravelHealthPro (UKHSA/NaTHNaC) – Thailand (checked October 2026)
- UK FCDO – Thailand travel advice: Health (checked October 2026)
- UK FCDO – Thailand travel advice: Entry requirements (checked October 2026)
- NHS – Travel vaccinations (checked October 2026)