Tick-Borne Encephalitis Vaccine for Travelers: A Physician's Guide to TICOVAC, Risk Zones, and Who Should Get It

If you are heading to a forested part of Central or Eastern Europe between May and September, there is one vaccine that almost no US traveler talks about and that almost every European hiker takes for granted. It is the tick-borne encephalitis vaccine.

This guide walks through everything a US-based traveler needs to know about the TBE vaccine: what tick-borne encephalitis is, which countries put you at risk, how the TICOVAC vaccine works, the standard and accelerated dosing schedules, who the CDC and ACIP recommend it for, what it costs, and how to actually get it before your trip.

Quick answer: Do I need the TBE vaccine?

If your trip involves outdoor activity (hiking, camping, mountain biking, forestry work, birding, foraging, rural farm stays, or trail running) in a TBE-endemic country during tick season (April through November, peaking May to July and again September to October), you should strongly consider the TBE vaccine. Endemic countries include Austria, Germany, Switzerland, Czech Republic, Slovakia, Poland, Hungary, Slovenia, the Baltic states (Estonia, Latvia, Lithuania), Sweden, Finland, parts of Russia, China, Mongolia, Japan, and South Korea. If your trip is entirely urban (Vienna, Berlin, Prague city centers only), the risk is low and the vaccine is usually not needed. If your trip includes both, default to vaccinating: the dose schedule needs to start weeks before departure, so there is no easy way to "wait and see." The vaccine in the US is TICOVAC (Pfizer), the only FDA-approved TBE vaccine, approved August 2021 for ages 1 and older. ACIP formally recommended it for at-risk US travelers in November 2023.

That is the short answer. The rest of this article explains why.

What is tick-borne encephalitis?

Tick-borne encephalitis is a viral infection of the brain and spinal cord caused by the TBE virus, a flavivirus in the same family as Japanese encephalitis, yellow fever, dengue, and West Nile virus. It is spread primarily through the bite of infected Ixodes ticks: Ixodes ricinus across Europe and Ixodes persulcatus across northern Eurasia and Asia. A smaller fraction of cases (around 1 percent in some endemic regions) come from drinking unpasteurized milk or eating fresh cheese made from goats, sheep, or cows that carry the virus.

The disease typically unfolds in two phases. The first phase begins 7 to 14 days after the tick bite (range 4 to 28 days) and looks like an unremarkable viral illness: fever, fatigue, headache, muscle aches, nausea. This lasts 4 to 10 days, and about two-thirds of patients recover at this point without progressing further. The remaining one-third have a brief period of feeling better, then enter the second phase: neurological involvement that can range from meningitis (inflammation of the lining of the brain) to encephalitis (inflammation of the brain itself) to myelitis (inflammation of the spinal cord). This is the phase that lands people in the ICU.

Mortality depends on which viral subtype is involved. The European subtype, the one most US travelers will encounter, carries a case fatality rate of roughly 0.5 to 2 percent. The Siberian and Far Eastern subtypes, which dominate in Russia and parts of Asia, can have case fatality rates as high as 20 to 40 percent in some series. The harder number, the one I quote to patients more often, is this: 30 to 60 percent of patients who develop the neurological phase have long-term complications such as cognitive problems, motor weakness, hearing loss, balance issues, or chronic fatigue, sometimes for years.

There is no specific antiviral treatment for TBE. Care is supportive only. The vaccine is the only meaningful prevention beyond strict tick avoidance.

Where TBE is endemic: the countries that matter for US travelers

TBE is endemic in 27 or more countries across Europe and Asia. The European Centre for Disease Prevention and Control (ECDC) tracks several thousand confirmed cases each year, with the highest annual incidence in Czech Republic, Slovenia, Lithuania, Latvia, Estonia, Austria, and parts of Germany, Switzerland, Sweden, and Finland. Below are the high-risk destinations US travelers are most likely to visit.

High-risk for outdoor travelers

Lower-risk for typical US travelers

If your trip is entirely urban and you are not heading into wooded parks or rural countryside, you are unlikely to encounter Ixodes ticks. City sightseeing in Vienna, Berlin, Prague, Warsaw, Stockholm, Helsinki, Tokyo, or Seoul without forest hiking is not a strong indication for the vaccine on its own. The exception: a single forested day trip into the Wienerwald, the Czech countryside, or a Finnish summer cottage is enough to put you in tick habitat, and that is when many tourist cases happen.

For destination-specific risk overviews, our Travel Health Guide: Germany and other European destination guides on our destinations hub walk through the country-by-country picture.

The TICOVAC vaccine: what US travelers actually get

In August 2021, the FDA approved TICOVAC (Pfizer), an inactivated whole-virus TBE vaccine that has been used safely in Europe for decades under the brand name FSME-Immun. It became the first and remains the only TBE vaccine licensed for use in the United States.

TICOVAC is approved for everyone aged 1 year and older. There are two formulations:

• TICOVAC (adult formulation) for ages 16 and older
• TICOVAC pediatric for ages 1 through 15

Both formulations are given as intramuscular injections, usually in the deltoid for adults and the anterolateral thigh for young children. The vaccine is inactivated, meaning it contains no live virus, so it is safe for immunocompromised patients (though immunogenicity may be reduced).

The standard dosing schedule

The full TBE vaccine series is three doses given over roughly a year:

After the three-dose primary series, a booster is recommended 3 years later. Subsequent boosters are typically every 3 to 5 years if ongoing exposure continues, with longer intervals (up to 10 years) for travelers over 60 in some European schedules.

The accelerated schedule for travelers leaving soon

Most US travelers do not have a year to plan a vaccine series, which is exactly why the accelerated schedule exists.

That means with a 14-day accelerated schedule, a traveler can have meaningful protection roughly 4 weeks after their first shot. This is the schedule I recommend most often for US travelers who walk into a pre-trip visit four to six weeks before departure. If your trip is less than four weeks away, you can still start the series, but you will not have meaningful protection in time for high-exposure activities, and aggressive tick precautions (clothing, repellents, daily tick checks) become the only line of defense.

ACIP and CDC recommendations: who specifically should get vaccinated?

In November 2023, the Advisory Committee on Immunization Practices (ACIP) of the CDC published its formal recommendation for TBE vaccine use in the US. The recommendations split into two tiers.

Vaccination is recommended (strong recommendation)

• People moving to or staying long-term (1 month or more) in TBE-endemic areas during tick season, especially with planned outdoor exposure
• Laboratory workers with potential exposure to TBE virus
• People living in or traveling to areas where they will have extensive exposure to ticks based on planned outdoor activities

Shared clinical decision-making (case-by-case)

• Short-term travelers (less than 1 month) to TBE-endemic areas during tick season with moderate outdoor exposure
• Travelers staying in urban areas only but with some planned excursions to rural or forested areas

For most US travelers, the question is really about how much time you will spend in tick habitat. If your itinerary includes any of the following, I usually recommend vaccinating:

• Hiking, trekking, or trail running in forested or grassy areas
• Camping or rural cabin stays
• Mountain biking on forested trails
• Birding, foraging, mushroom hunting, or extended outdoor photography
• Working or volunteering on farms, in forestry, or in field research
• Visiting summer houses in the Baltic, Scandinavian, or Alpine countryside
• Cycling routes that pass through rural and forested areas (Danube bike path, EuroVelo routes)

If you are unsure where your specific itinerary falls, a 10-minute clinical conversation usually settles it. Our free pre-trip health check walks travelers through a destination and activity questionnaire so a Wandr clinician can give a clear recommendation.

Side effects and safety

In clinical trials and decades of European post-marketing surveillance, TICOVAC has had a strong safety record. The most common side effects are typical for an inactivated vaccine:

• Injection site pain (about 30 percent of adults, higher in children)
• Headache, fatigue, mild fever, muscle aches (10 to 30 percent)
• Restlessness or irritability in young children

Serious adverse events are rare. There is no demonstrated link between TICOVAC and Guillain-Barre syndrome or other autoimmune neurological conditions when looked at across pooled European safety data.

People who should not get TICOVAC, or should discuss it carefully with a clinician first:

• Severe allergy to a previous TBE vaccine dose or vaccine component (notably egg protein, which is used in production, though the residual amount is low)
• Acute moderate or severe illness at the time of vaccination (postpone, do not cancel)
• Pregnant or breastfeeding travelers should discuss individually; ACIP allows TICOVAC during pregnancy when the risk of TBE exposure outweighs theoretical vaccine risk, given it is inactivated

How much does TICOVAC cost in the US?

The cost is one of the harder parts of the conversation. TICOVAC in the US currently runs roughly $200 to $300 per dose at most travel clinics and pharmacies, which means the full three-dose primary series totals around $600 to $900, plus administration fees in some settings. Insurance coverage varies widely. Some health plans cover travel vaccines, including TBE; many do not. HSA and FSA dollars can usually be used.

For comparison, a single hospitalization for TBE-related encephalitis runs into the tens of thousands of dollars in the US healthcare system, and that is before lost wages and the potential for chronic neurological sequelae. For a traveler heading into clear high-risk tick habitat, the vaccine math works out in the traveler's favor.

How to actually get the TBE vaccine before your trip

TICOVAC is not yet on the routine shelf of every US pharmacy, but availability has improved significantly since 2022. Most CDC-affiliated travel clinics, university health systems, and the larger pharmacy chains (Walgreens, CVS, Costco Pharmacy) can now stock it through travel vaccine standing orders.

Through Wandr, the workflow is straightforward. You answer a few questions about your destination and activities. If your itinerary fits the ACIP recommendation, Wandr's clinicians review your case and book your TBE vaccine appointment at a partner pharmacy near you. The pharmacist administers TICOVAC on-site, and the pharmacy electronically captures the dose in your vaccine record, which is what you will want if you need to show proof of vaccination at any point.

Travel vaccines like TBE do not require a separate physician prescription in the US, since pharmacists are authorized to administer them under state standing orders. You do not need to schedule a doctor's visit just to get the shot.

For travelers who want a broader review of which vaccines they actually need beyond TBE, see our Do I Need Travel Vaccines guide and the full Travel Vaccines Guide pillar.

Tick avoidance still matters, even after vaccination

The vaccine is your most powerful defense, but it covers TBE virus only. Ixodes ticks in Europe also carry Borrelia (Lyme disease), Anaplasma, Babesia, and several less common pathogens. None of these are prevented by the TBE vaccine. So the standard tick precautions still apply.

The practical short list I give travelers:

1. Wear long pants tucked into socks, and a long-sleeved shirt, when walking in forested or grassy areas. Light colors make ticks visible.
2. Use an EPA-registered repellent containing DEET (20 to 30 percent), picaridin (20 percent), or IR3535 on exposed skin.
3. Treat outer clothing with permethrin before the trip. Permethrin-treated clothing is highly effective and lasts through several washes.
4. Do a full-body tick check at the end of every day in tick habitat, including scalp, behind the ears, armpits, groin, and behind the knees. Children should be checked by an adult.
5. If you find a tick, remove it with fine-tipped tweezers as close to the skin as possible. Pull straight up, slow and steady. Clean the bite area. Note the date, the location of the bite, and the body part for reference.
6. Watch for any flu-like illness in the 4 weeks after the bite. If fever, headache, or unusual neurological symptoms develop, mention the tick bite to whichever clinician you see, including the country of exposure.

Frequently asked questions about the TBE vaccine

Is the TBE vaccine the same as the Lyme disease vaccine?

No. They are completely different. The TBE vaccine prevents tick-borne encephalitis, a viral infection. Lyme disease is a bacterial infection caused by Borrelia burgdorferi (in North America) or related Borrelia species in Europe. There is no licensed Lyme disease vaccine for general use in the US currently, although one (VLA15) is in late-stage clinical trials. Both infections are spread by Ixodes ticks, sometimes by the same bite, but the vaccines target different pathogens.

Do I need the TBE vaccine if I am only traveling to Western Europe (France, Spain, Italy, UK)?

For typical urban and coastal travel to France, Spain, Italy, Portugal, the UK, or Ireland, TBE vaccination is generally not recommended. These countries have very low or no documented TBE risk. The exception is the eastern French regions bordering Switzerland and Germany (Alsace, parts of the Jura), where some sporadic cases have been documented. If your itinerary is purely Paris, Barcelona, or Rome, you do not need this vaccine. If you are doing Alpine hiking that crosses into Switzerland or Austria, you do.

Is the TBE vaccine required for entry into any country?

No country currently requires the TBE vaccine for entry. It is recommended for outdoor exposure, not required by border authorities. This is different from yellow fever, which some countries require for entry. For a full breakdown of which vaccines are required vs recommended, see our Yellow Fever Vaccine guide.

Can I get the TBE vaccine at the same visit as my other travel vaccines?

Yes. TICOVAC can be co-administered with other inactivated vaccines (typhoid Vi, hepatitis A, hepatitis B, Tdap, influenza) and with most live vaccines including MMR and yellow fever, given at separate injection sites. There is no required spacing between TICOVAC and other vaccines for healthy travelers. This is actually one of the reasons our clinicians schedule travel vaccine appointments at a single pharmacy visit when possible.

What happens if I get only one or two doses before my trip?

A single dose of TICOVAC provides little reliable protection. Two doses given on the accelerated schedule (Day 0 and Day 14) provide approximately 90 percent protection starting about 14 days after the second dose. If you can get two doses in before departure, you have meaningful protection for that trip. The third dose is what locks in long-term immunity, so plan to complete the series after you return so you are covered for future trips.

Is the TBE vaccine safe for children?

Yes. TICOVAC pediatric is FDA approved for ages 1 through 15. Pediatric TBE is actually one of the more common pediatric travel infection diagnoses in Central and Eastern European hospitals during summer, and Austria's national pediatric vaccination program against TBE has been credited with dropping pediatric TBE cases by more than 90 percent since the 1980s. The pediatric formulation has a strong safety profile across decades of European use.

Can pregnant travelers get the TBE vaccine?

TICOVAC is an inactivated vaccine and is not contraindicated in pregnancy. ACIP guidance allows TBE vaccination during pregnancy when the risk of exposure outweighs the theoretical risk of vaccination. In practice, this is a personal conversation with a clinician who knows your itinerary. If a pregnant traveler is heading into the Czech Republic for a forest cabin stay in July, I usually recommend vaccinating. If she is doing a wine tour in Vienna only, I usually do not.

How long does TBE vaccine protection last?

After the full three-dose primary series, protective antibody levels are documented for at least 3 years in over 95 percent of recipients. A first booster is given 3 years after the primary series, with subsequent boosters every 3 to 5 years (or every 5 to 10 years for older adults, depending on national guidance and exposure risk).

What if I had the TBE vaccine in Europe, do I need to redo it in the US?

No. The European TBE vaccines (FSME-Immun, Encepur) and the US TICOVAC product are essentially the same family of inactivated whole-virus vaccines. ACIP accepts a documented prior series done with FSME-Immun or Encepur, and you can continue with TICOVAC for boosters. Bring your European vaccine card or digital record to your appointment.

Where can US travelers actually get TICOVAC near them?

TICOVAC is available at most travel clinics, university health services, and the larger US pharmacy chains. Through Wandr, our clinicians review your trip details and book your appointment at a partner pharmacy near you. The pharmacist administers the vaccine on-site, and you walk out with proof of vaccination documented in your record. Start the conversation with a free pre-trip health check.

The bottom line

If you are reading this article more than four weeks before a trip that includes any meaningful outdoor exposure in Central, Eastern, or Northern Europe during tick season, the TBE vaccine is one of the highest-yield decisions you can make for your trip. It is safe, evidence-supported, FDA-approved in the US, and prevents an infection that has no antiviral treatment and a meaningful rate of long-term complications. If you are reading this less than four weeks out and your trip is high-risk, get the first dose this week, do tick avoidance aggressively, and complete the series after you return so the next trip is fully covered.

Ready to plan your travel vaccines? Start with a free pre-trip health check and let Wandr's clinicians map out exactly which vaccines you need, including TBE if your itinerary calls for it. We will book your appointments at a partner pharmacy near you so you can travel covered.

Sources

1. Centers for Disease Control and Prevention. CDC Yellow Book 2024: Health Information for International Travel. Chapter on Tick-Borne Encephalitis. https://wwwnc.cdc.gov/travel/yellowbook
2. Hills SL, Broussard KR, Broyhill JC, et al. Tick-Borne Encephalitis Vaccine: Recommendations of the Advisory Committee on Immunization Practices, United States, 2023. MMWR Recommendations and Reports. November 2023; 72(RR-5):1-29.
3. World Health Organization. Vaccines against tick-borne encephalitis: WHO position paper. Weekly Epidemiological Record. June 2011 (with subsequent updates).
4. European Centre for Disease Prevention and Control (ECDC). Tick-Borne Encephalitis: Annual Epidemiological Report. ECDC Surveillance Atlas of Infectious Diseases.
5. Pfizer Inc. TICOVAC (Tick-Borne Encephalitis Vaccine) Prescribing Information. FDA Approval Letter, August 2021.
6. Heinz FX, Holzmann H, Essl A, Kundi M. Field effectiveness of vaccination against tick-borne encephalitis. Vaccine. 2007;25(43):7559-67.
7. Kunze U, ISW-TBE. Tick-borne encephalitis: from epidemiology to current vaccination recommendations and disease awareness. Vaccine. 2024 update.