You should be up to date on routine vaccinations while traveling to any destination. These vaccines include measles-mumps-rubella (MMR) vaccine, diphtheria-tetanus-pertussis vaccine, varicella (chickenpox) vaccine, polio vaccine, and your yearly flu shot.

Hepatitis A – CDC* recommends this vaccine because you can get hepatitis A through contaminated food or water in Thailand, regardless of where you are eating or staying.

Typhoid – You can get typhoid through contaminated food or water in Thailand. CDC* recommends this vaccine for most travelers, especially if you are staying with friends or relatives, visiting smaller cities or rural areas, or if you are an adventurous eater.

CDC – Center for Disease Control and Prevention
Other vaccines:
Hepatitis B – You can get hepatitis B through sexual contact, contaminated needles, and blood products.

Japanese Encephalitis – You may need this vaccine if your trip will last more than a month, depending on where you are going in Thailand and what time of year you are traveling. You should also consider this vaccine if you plan to visit rural areas in Thailand or will be spending a lot of time outdoors, even for trips shorter than a month.

Malaria – When traveling in Thailand, you should avoid mosquito bites to prevent malaria. You may need to take prescription medicine before, during, and after your trip to prevent malaria, depending on your travel plans, such as where you are going, when you are traveling, and if you are spending a lot of time outdoors or sleeping outside.

Rabies – Although rabies can be found in dogs, bats, and other mammals in Thailand, it is not a major risk to most travelers.

Yellow Fever – There is no risk of yellow fever in Thailand. The government of Thailand requires proof of yellow fever vaccination only if you are arriving from a country with risk of yellow fever. This does not include the US. If you are traveling from a country other than the US, check this list to see if you may be required to get the yellow fever vaccine: Countries with risk of yellow fever virus (YFV) transmission.

Center for Disease Control and Prevention