Travel Vaccines: What You Need Before You Go

Which vaccines you need depends on where you're going, not your home country

The vaccines required for travel are determined by the diseases present in your destination, not by where you live. A traveler from the United States heading to Thailand needs different shots than one heading to Canada. Your doctor or a travel clinic can tell you which ones matter for your specific itinerary — but you need to know your destination, the regions you'll visit within it, and how long you'll stay.

Some vaccines take weeks to become fully protective, and a few require multiple doses spaced days or weeks apart. Starting this conversation with a healthcare provider 4 to 6 weeks before departure gives you time to complete the series without rushing. If you're leaving sooner, tell your doctor the timeline — some protection is better than none, and they can advise on what's possible in your window.

Travel vaccines are not always covered by standard health insurance, and not all pharmacies stock them. Your travel medical insurance may cover the cost of vaccines given before departure, but policies vary — check your plan's details before you book appointments.

Key Takeaways

• Required and recommended vaccines change by destination, so you need to know which countries and regions you'll visit before scheduling appointments.
• Some vaccines require multiple doses or take weeks to work, so scheduling a travel clinic visit 4 to 6 weeks before departure gives you the best protection.
• Yellow fever is the only vaccine legally required for entry to certain countries, but many others are strongly recommended depending on where you go.
• Travel vaccines are often not covered by routine health insurance, so confirm what your travel medical insurance covers before you pay out of pocket.
• A travel clinic or your primary care doctor can review your vaccination history and tell you which shots you actually need versus which are optional for your trip.

Yellow fever: the only vaccine with legal entry requirements

Yellow fever is the only vaccine that some countries legally require for entry. If you're traveling to or through certain African and South American countries, you may need proof of yellow fever vaccination to cross the border. The requirement applies whether you're staying for a day or a month.

Not every country in these regions requires it — requirements are specific and change. Before booking, search "[country name] yellow fever vaccination requirements" or ask your travel clinic. If a country requires it and you don't have proof, you can be denied entry or quarantined.

The yellow fever vaccine is a live vaccine, meaning it contains a weakened form of the virus. It's not suitable for pregnant people, people with certain immune conditions, or those allergic to eggs. If you fall into one of these groups, your doctor can discuss alternatives or whether the risk of yellow fever in your destination outweighs the vaccine risk for you.

Routine vaccines you may need to update before travel

Beyond travel-specific shots, your routine vaccinations matter. Measles, mumps, rubella, polio, and tetanus spread globally, and outbreaks happen in places you might not expect. If your routine vaccines are out of date, a travel clinic visit is a good time to catch up.

Measles is particularly relevant for travelers because outbreaks occur regularly in countries with lower vaccination rates, and the disease spreads fast in crowded spaces like airports and hostels. If you were born after 1957 and don't have documented proof of two doses of the measles vaccine or immunity from past infection, your doctor will likely recommend updating before you go.

Tetanus protection lasts 10 years, so if your last tetanus shot was more than a decade ago, you'll need a booster. This is true whether you're traveling or not, but a trip is a practical time to handle it.

Hepatitis A and typhoid: common recommendations for many destinations

Hepatitis A and typhoid are spread through contaminated food and water. Both are common recommendations for travelers heading to parts of Central America, South America, Africa, South Asia, and Southeast Asia — though the specific recommendation depends on your exact itinerary and how you'll be traveling.

Hepatitis A vaccine requires two doses given 6 to 12 months apart for full protection. If you're leaving before you can complete both doses, one dose offers some protection and you can finish the series after you return. Typhoid vaccine comes in two forms: an injection (one dose, lasts 3 years) or an oral pill (four doses over one week, lasts 5 years). Your doctor can discuss which fits your timeline and preferences.

These vaccines don't may provide you won't get sick — they reduce your risk. Careful food and water practices matter too: eat hot foods, drink bottled or boiled water, and avoid ice made from tap water.

Malaria prevention: medication, not a vaccine

Malaria has no vaccine, but antimalarial medication can prevent it. If you're traveling to a region where malaria is present, your doctor will discuss whether medication makes sense for your trip. The decision depends on which specific areas you'll visit (malaria risk varies within countries), the season, how long you're staying, and your personal health history.

Antimalarial medications must be started before you arrive, continued while you're there, and finished after you leave — the timing varies by medication. Some people take them for weeks; others take them for months. Side effects vary too, and some medications don't work in all regions because the malaria parasite has developed resistance.

This is not a decision to make on your own. A travel clinic or your doctor will review the current malaria situation in your destination and recommend the right medication and schedule for you. If you're pregnant, planning to become pregnant, or have certain health conditions, some antimalarial drugs are off-limits and your doctor will discuss alternatives.

Japanese encephalitis, dengue, and less common travel vaccines

Depending on your destination and activities, your doctor may recommend vaccines for Japanese encephalitis, dengue, rabies, or other diseases. Japanese encephalitis is recommended for travelers spending extended time in rural areas of East and Southeast Asia during transmission season. Dengue has no vaccine yet, though one exists in some countries for people who've had dengue before — prevention relies on mosquito protection.

Rabies vaccine is sometimes recommended for travelers planning outdoor activities, long stays in remote areas, or work with animals. It requires three doses before departure and is most useful if you'll be far from medical care, since post-exposure treatment is still possible even after a bite if you reach a hospital quickly.

These recommendations are specific to your itinerary. A travel clinic can review your plans and tell you which ones apply to you.

Where to get travel vaccines and what to bring

Travel clinics, your primary care doctor, and some pharmacies all offer travel vaccines. Travel clinics often have the widest range in stock and staff trained specifically in travel medicine, but they may cost more than your regular doctor. Call ahead to confirm they have the vaccines you need — some require special ordering.

Bring your vaccination record (the card or document showing what you've had) to your appointment. If you don't have it, your doctor can check your medical records or do a titer test (a blood test that shows immunity). Bring your travel itinerary too — dates, countries, and regions matter for the recommendation.

After you receive vaccines, ask for documentation. Some countries require proof of specific vaccines in your passport or on an official certificate. Your provider will give you a record; keep it with your travel documents.

Timing: why 4 to 6 weeks before departure matters

Some vaccines work immediately; others take time. The yellow fever vaccine takes 10 days to become fully protective. Hepatitis A and typhoid vaccines work faster, but if you need two doses of hepatitis A, you need to space them 6 to 12 months apart — so if you haven't had one before, you can't complete the full series before a near-term trip.

Booking a travel clinic appointment 4 to 6 weeks out gives you a buffer. If your doctor recommends vaccines you haven't had, there's time to schedule them. If you need multiple doses, you can start the series. If you're leaving in two weeks, tell your doctor — they'll tell you what's possible and what protection you'll have.

If you're leaving in days and haven't thought about vaccines yet, call a travel clinic or your doctor anyway. Some protection before departure is better than none, and your doctor can advise on what's realistic.

Frequently Asked Questions

Do I need vaccines if I'm only staying in a resort or major city?

Risk is lower in resorts and cities, but it's not zero. Diseases like hepatitis A and typhoid spread in cities too, especially if you eat at street food vendors or smaller restaurants. Your doctor will consider your specific activities and accommodations when making a recommendation — tell them where you're staying and what you plan to do.

What if I'm allergic to eggs or have an immune condition?

Some vaccines contain egg protein or aren't safe for people with certain immune conditions. Tell your doctor about allergies and any immune disorders before your appointment. They can discuss which vaccines are safe for you and which ones you should skip, and may recommend alternatives or different timing.

Can I get multiple vaccines at the same time?

Yes, most vaccines can be given on the same day in different arms. Some vaccines need to be spaced out — your doctor will schedule them correctly. Getting multiple vaccines at once doesn't make them less effective; it just means you can finish your series faster.

Will my travel medical insurance cover the cost of vaccines?

Coverage varies by plan. Some travel medical insurance covers vaccines given before departure; others don't. Check your policy documents or call your insurer before you schedule appointments. If vaccines aren't covered, ask your doctor or travel clinic about the cost — prices vary widely.

What if I get sick after my trip and think it's from a disease I was vaccinated against?

Tell your doctor where you traveled and when. Vaccines reduce risk but don't eliminate it — breakthrough infections happen, though they're usually milder than they would be without the vaccine. Your doctor can test for the specific disease and treat it if needed.