Do I Need Vaccines Before Traveling Internationally?

Yes, most international travelers need at least one travel vaccine, and many need several. The CDC recommends that all international travelers be up to date on routine vaccinations — including measles, tetanus, and polio — and receive destination-specific vaccines based on where they're going. According to the CDC, vaccine-preventable diseases like hepatitis A and typhoid remain among the top health risks for international travelers, with hepatitis A alone affecting an estimated 13 out of every 100,000 unvaccinated travelers to endemic regions each month. Some countries legally require proof of vaccination for entry. As a team of travel medicine specialists, we've treated travelers in the ER for preventable diseases they picked up abroad, and we can tell you: pre-trip vaccines are one of the highest-value things you can do before a trip. Through Wandr Health, you can book travel vaccine appointments online and get everything handled in one visit, often saving hundreds compared to traditional travel clinics.

Which Travel Vaccines Might You Need?

Travel vaccines fall into three categories: routine, recommended, and required. Understanding the difference helps you plan the right protection for your specific trip.

Routine Vaccines

These are the ones you should already have as an adult living in the US. Before any international trip, confirm you're current on measles, mumps, and rubella (MMR); tetanus and diphtheria (Td or Tdap); varicella (chickenpox); polio; influenza; and COVID-19.

Measles is especially important: the WHO reported over 300,000 measles cases globally in 2023, and the CDC emphasizes that all international travelers should be fully vaccinated against measles before departure. Many adults don't realize their childhood vaccines have lapsed.

Recommended Vaccines

These are vaccines the CDC suggests based on your destination, even if they aren't legally required for entry. Here are the most common travel-specific vaccines:

• Hepatitis A: Recommended for most developing countries. Spread through contaminated food and water. Even a single dose before departure offers 94–100% protection within 4 weeks, according to the CDC.
• Typhoid: Recommended for South Asia, Africa, and parts of Central and South America. Available as an injection (one dose, 2 years of protection) or oral capsules (4 doses, 5 years). The CDC estimates 5,700 US cases annually, mostly among returning travelers.
• Yellow fever: Recommended for tropical regions of Africa, Southeast Asia, and South America where the virus circulates. One dose provides lifelong protection.
• Japanese encephalitis: Recommended for travelers spending extended time in rural areas of Asia or the Pacific Islands, particularly during transmission season.
• Rabies: Recommended for areas where rabies is common, especially if you'll be hiking, camping, or working with animals. The updated 2-dose pre-exposure regimen (days 0 and 7) is less expensive and easier to complete than the previous 3-dose schedule.
• Cholera: Recommended for areas with active cholera outbreaks. The oral vaccine (Vaxchora) is a single dose taken at least 10 days before travel.
• Meningococcal: Recommended for travelers to the African meningitis belt, especially during the dry season (December through June).

Required Vaccines

Only three vaccines currently carry legal entry requirements:

• Yellow fever: Dozens of countries in Africa and South America require an International Certificate of Vaccination or Prophylaxis (ICVP, commonly called a "yellow card") for arriving travelers. Travelers without valid proof may be denied entry, quarantined, or revaccinated at the border. One dose is valid for life.
• Meningococcal meningitis: Saudi Arabia requires proof of ACWY meningococcal vaccination for all Hajj and Umrah pilgrims. Iraq requires the same for travelers arriving from African meningitis belt countries.
• Polio: Proof of polio vaccination within the past 12 months may be required when departing from or arriving in countries with ongoing transmission, including Afghanistan and Pakistan.

How to Find Out Which Vaccines You Need

The fastest way to check your specific requirements is through the CDC's Travelers' Health destination pages at wwwnc.cdc.gov/travel/destinations/list. Select your country, and the CDC provides a breakdown of required and recommended vaccines plus any current health alerts.

You can also start a visit with Wandr Health to get a personalized vaccine and medication checklist based on your destination, travel dates, planned activities, and medical history. Our providers review your health profile and give you everything in one place, which is faster than clicking through CDC pages for multi-country trips.

How Far in Advance Should You Get Travel Vaccines?

The CDC recommends scheduling a travel health appointment at least 4 to 6 weeks before departure. Here's why that timeline matters:

• Immune response: Your body needs 2 to 4 weeks to build protective antibodies after vaccination.
• Multi-dose schedules: Some vaccines require multiple shots spaced over weeks. Hepatitis B, for example, requires three doses over 6 months for full protection (though an accelerated schedule exists).
• Yellow fever timing: The yellow fever ICVP does not become valid until 10 days after vaccination. If your destination requires proof and you get vaccinated too late, you may need to change your plans.
• Availability: Not every pharmacy or doctor's office stocks travel vaccines like yellow fever, Japanese encephalitis, or rabies. You may need a travel medicine clinic or an online booking service like Wandr Health to get everything in one visit.

If your trip is less than 4 weeks away, it's still worth getting vaccinated. The CDC Yellow Book notes that healthcare professionals should provide services even within days of departure.

A single dose of a multi-dose vaccine offers partial protection — something is almost always better than nothing. If you also need malaria pills or other travel medications delivered, a last-minute Wandr visit can cover everything at once.

Not sure which vaccines you need? Wandr Health gives you a personalized vaccine checklist based on your destination and travel dates — for free. Our licensed physicians review your plan and connect you with a clinic that has everything in stock. Start your visit →

What Do Travel Vaccines Cost?

Travel vaccine costs add up quickly. A typical travel clinic visit includes a consultation fee ($100–$300) plus $50–$350 per vaccine. A traveler headed to East Africa needing yellow fever, typhoid, hepatitis A, and a Tdap booster could easily spend $500–$900 at a walk-in clinic.

Most health insurance plans do not cover travel-specific vaccines. Routine boosters like Tdap or MMR may be covered under preventive care, so check with your provider before your appointment.

Through Wandr Health, you can book vaccine appointments online, compare pricing, and avoid the consultation markups that many brick-and-mortar clinics charge. You'll also get a personalized checklist so you know exactly what you need before you walk in — no surprise charges.

Common Mistakes Travelers Make with Vaccines

In our clinical experience treating returning travelers, these are the vaccine-related mistakes we see most often:

Waiting too long. The number one issue. Travelers book a trip, get excited about packing and itineraries, and don't think about vaccines until a week before departure. By then, some vaccines can't reach full effectiveness.

Assuming routine vaccines are current. Many adults are overdue for Tdap boosters (recommended every 10 years) or never completed their hepatitis B series. The CDC estimates that only 37% of US adults are up to date on Tdap. International travel is a good reason to review your full immunization record — not just travel-specific shots.

Skipping recommended vaccines because they're "not required." Required and recommended are not the same thing. Hepatitis A is rarely a legal entry requirement, but it's one of the most common vaccine-preventable infections among travelers. Typhoid is another. The fact that a country doesn't require a vaccine at the border doesn't mean the disease isn't widespread there.

Not bringing documentation. Keep a copy of your vaccination records when you travel. Some countries check at the border, and hospitals abroad will want to see your records if you need treatment.

Ready to get your travel vaccines handled? Wandr Health connects you with our licensed physicians who review your trip and tell you exactly what you need — then book your vaccine appointment at a clinic that has everything in stock. Start your visit →

FAQ: Travel Vaccines for International Travel

Do all countries require vaccines for entry? No. Only a limited number of countries legally require proof of vaccination — primarily yellow fever, meningococcal, and polio. However, the CDC recommends destination-specific vaccines for most international travel based on disease risk, even when they aren't required for entry.

Can I get travel vaccines at my regular doctor's office? Some primary care offices carry common vaccines like hepatitis A and Tdap, but most do not stock specialized travel vaccines like yellow fever, Japanese encephalitis, or rabies. The CDC recommends visiting a travel medicine specialist or using an online booking service like Wandr Health that connects you with clinics carrying the full range of travel vaccines.

Are travel vaccines covered by insurance? Most health insurance plans do not cover travel-specific vaccines. Routine boosters (Tdap, MMR, polio) may be covered under preventive care. Vaccines like yellow fever ($150–$350), typhoid ($50–$150), and Japanese encephalitis ($350–$700 for two doses) are typically out-of-pocket. Some employers with international travel programs reimburse these costs.

What happens if I travel without recommended vaccines? You may not be denied entry (unless the vaccine is legally required), but you're traveling without protection against diseases genuinely present at your destination. According to the CDC, hepatitis A, typhoid, and rabies are real risks in many popular travel destinations. Treatment abroad is expensive, difficult to access, and far more disruptive than a pre-trip vaccine appointment.

Is it too late to get vaccinated if my trip is next week? No. The CDC advises that pre-travel care should be provided even to last-minute travelers. While some vaccines need 2–4 weeks to reach full effectiveness, partial protection from a first dose is better than none. Our providers can prioritize which vaccines to administer based on your departure date and destination risk.

How long do travel vaccines last? Duration varies by vaccine. Yellow fever is valid for life after a single dose. Hepatitis A provides lifelong protection after 2 doses. Typhoid injectable lasts about 2 years. Rabies pre-exposure protection does not have a defined expiration, though booster recommendations depend on ongoing risk. Our providers can review your records and tell you exactly what's still current.

Do children need different travel vaccines than adults? Children need the same destination-specific vaccines as adults, with age-appropriate dosing. The CDC notes that MMR and hepatitis A vaccines can be given as early as 6–11 months for infants traveling internationally — earlier than the standard 12-month schedule. Start a visit with our pediatric travel medicine providers at least 6 weeks before departure.

Medical Disclaimer: This article is for informational purposes only and does not constitute medical advice. Start a visit with a licensed healthcare provider for personalized vaccine recommendations based on your health history and travel plans.

Sources

1. CDC Travelers' Health. "Need travel vaccines? Plan ahead." https://wwwnc.cdc.gov/travel/page/travel-vaccines
2. CDC Yellow Book 2026. "Vaccination and Immunoprophylaxis: General Principles." https://www.cdc.gov/yellow-book/hcp/preparing-international-travelers/vaccination-and-immunoprophylaxis-general-principles.html
3. CDC Yellow Book 2026. "Last-Minute Travelers." https://www.cdc.gov/yellow-book/hcp/preparing-international-travelers/last-minute-travelers.html
4. CDC Travelers' Health. "Routine Vaccines." https://wwwnc.cdc.gov/travel/page/routine-vaccines
5. CDC. "Yellow Fever Vaccine and Malaria Prevention Information, by Country." https://www.cdc.gov/yellow-book/hcp/preparing-international-travelers/yellow-fever-vaccine-and-malaria-prevention-information-by-country.html
6. WHO. "Countries with risk of yellow fever transmission and countries requiring yellow fever vaccination." https://www.who.int/publications/m/item/countries-with-risk-of-yellow-fever-transmission-and-countries-requiring-yellow-fever-vaccination-(november-2022)
7. WHO. "Measles — Key facts." https://www.who.int/news-room/fact-sheets/detail/measles