The travel vaccines you need depend on where you’re going, how long you’ll be there, and what you’ll be doing. There’s no single list that applies to every trip. Instead, vaccines fall into three categories: routine ones you should already have, legally required ones that border agents will check, and recommended ones based on the health risks at your destination. A travel health appointment at least four to six weeks before departure gives you time to complete any multi-dose series.
Start With Your Routine Vaccines
Before thinking about travel-specific shots, make sure your standard immunizations are current. Many vaccine-preventable diseases that are rare in the United States, like measles, are still circulating in popular travel destinations including the UK, India, Thailand, Japan, Vietnam, and the Philippines. Unvaccinated international travelers are the primary source of measles cases brought back into the U.S.
Routine vaccines relevant to travel include measles-mumps-rubella (MMR), chickenpox, tetanus-diphtheria-pertussis, polio, hepatitis A, hepatitis B, flu, and COVID-19. The specific ones you need depend on your age, health, and what you’ve already received. Adults with no documented immunity to measles need two doses spaced 28 days apart, ideally finished at least two weeks before departure. If your trip is less than two weeks away, getting even one dose still offers some protection.
Legally Required: Yellow Fever
Yellow fever is the main vaccine that countries can legally demand at the border. Roughly 20 countries in Africa and a handful in the Americas require proof of vaccination from all arriving travelers. These include Angola, Cameroon, Ghana, Uganda, Burkina Faso, the Democratic Republic of the Congo, Sierra Leone, South Sudan, and French Guiana, among others. Bolivia also requires it.
Proof comes in the form of an International Certificate of Vaccination or Prophylaxis, commonly called the “yellow card.” This is a paper booklet stamped and signed by an authorized provider. Digital versions have been discussed for years, but authenticated paper records remain the standard at border crossings. If you arrive without your certificate or a medical waiver, you could be denied entry, placed in quarantine for up to six days, or required to get vaccinated on the spot.
A single dose of yellow fever vaccine is now considered valid for life. The booster requirement was eliminated under international health regulations in 2016. Country entry requirements can change at any time, so checking with your destination’s embassy or consulate before departure is worth the effort.
Destination-Based Recommendations
Beyond legal requirements, your destination determines which additional vaccines a travel health provider will recommend. These aren’t enforced at the border, but they protect you against diseases that are common in regions with different sanitation infrastructure, animal populations, or insect-borne illness patterns.
Hepatitis A
This is one of the most commonly recommended travel vaccines. Hepatitis A spreads through contaminated food and water, and risk is highest in parts of Africa, South Asia, Central and South America, and Eastern Europe. Anyone traveling to a country with high or intermediate rates of hepatitis A who hasn’t been vaccinated or previously infected should get the vaccine before departure.
Typhoid
Typhoid is recommended for travelers to South Asia, parts of Africa, and Latin America, particularly if you’ll be eating street food or staying outside major tourist hotels. It’s available as an injectable shot or an oral capsule. The oral version is a live vaccine, which matters if you have immune system concerns (more on that below).
Japanese Encephalitis
This mosquito-borne virus is found across much of Asia and the western Pacific. The vaccine is recommended if you’re moving to or spending a month or more in an area where the virus circulates, or if you travel to these regions frequently. Even shorter trips can warrant the vaccine if your itinerary involves extensive outdoor or nighttime exposure in rural areas during transmission season. If you’re staying in urban areas for a short visit, the risk is generally too low to justify it.
Rabies
Rabies vaccine before travel is worth considering if you’ll be spending time in areas where dog rabies is common and access to emergency medical care is limited. This includes much of Africa, Asia, and parts of Central and South America. Activities like caving, cycling through rural areas, or working with animals also raise your risk. The pre-travel series has been simplified to two doses, down from three, which helps with both time and cost.
What a Travel Health Visit Costs
Many health insurance plans provide limited or no coverage for travel-specific vaccines and medications. Routine vaccines like MMR or hepatitis B are generally covered because they’re part of standard immunization schedules. But destination-specific shots like Japanese encephalitis or rabies often come out of pocket.
Costs add up quickly. A pre-travel consultation for a backpacker heading to West Africa, for example, can exceed $1,000 for the visit and vaccinations alone, not counting malaria prevention medication. Rabies vaccine in particular is expensive in the United States, though the newer two-dose series has brought costs down compared to the old three-dose regimen.
If cost is a concern, seeing a primary care provider with travel medicine experience can sometimes be more affordable than a dedicated travel clinic. It’s also worth asking about antibody testing: if bloodwork shows you’re already immune to a disease from a past vaccine or infection, the test may be covered by insurance even when the vaccine itself isn’t.
When to Schedule Your Appointment
Book a travel health visit at least four to six weeks before your trip. Some vaccines require multiple doses spread over weeks, and your immune system needs time after vaccination to build full protection. The MMR series, for instance, requires 28 days between doses plus two weeks after the second dose for optimal immunity.
If your trip is sooner than four weeks out, go anyway. Partial protection is better than none, and some vaccines work with a single dose. Your provider can help you prioritize based on the risks at your destination and the time you have left.
Live Vaccines and Immune Conditions
A few travel vaccines use live, weakened viruses: yellow fever, the oral typhoid capsule, and MMR. If you’re severely immunosuppressed due to medication, an organ transplant, or a condition affecting your immune system, these are contraindicated. Yellow fever vaccine in particular carries a risk of serious complications in immunocompromised travelers, including life-threatening organ involvement and neurological disease. It’s also contraindicated for people with certain thymus disorders, regardless of immune status.
If you can’t safely receive yellow fever vaccine and your destination requires it, a medical waiver may be an option. For typhoid, an injectable version that doesn’t use a live virus is available as an alternative. In some cases, the safest choice is adjusting your itinerary or delaying the trip.
How to Figure Out Your Specific List
The CDC maintains destination-specific pages that list the vaccines and health precautions recommended for every country. Searching “CDC travel health” followed by your destination gives you a starting point tailored to where you’re going. From there, a travel health provider can match those recommendations to your personal vaccine history, medical conditions, and itinerary details like whether you’ll be in cities or rural areas, staying in hotels or hostels, and traveling during rainy season or dry season. Your activities, the length of your stay, and even your accommodations all factor into which vaccines make sense for your trip.