Travel health

Hepatitis A Vaccine for Travel: Do You Need It and When to Get It

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For travel to most destinations outside the US, Canada, Western Europe, Australia, and New Zealand, clinicians recommend the hepatitis A vaccine. One dose gives most healthy adults strong short-term protection within two to four weeks, and a booster six to twelve months later provides very long-lasting protection. Even a dose just before departure is worthwhile.

Last updated: July 2026History

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Why does travel increase hepatitis A risk?

Hepatitis A is a liver infection caused by the hepatitis A virus (HAV). Unlike hepatitis B and C, it spreads almost entirely through contaminated food and water rather than blood or sexual contact. Travelers are at elevated risk because they eat and drink in environments where water treatment and food handling may differ significantly from home — tap water, ice made from tap water, raw shellfish, and food handled by someone with an active infection are the most common exposure routes 1.

Most people recover fully, but the illness can cause weeks or months of fatigue, jaundice (yellowing of the skin and eyes), nausea, and abdominal discomfort. Older adults and people with chronic liver disease are at higher risk for serious complications.

Which destinations are considered higher risk for hepatitis A?

The hepatitis A vaccine is generally recommended for travel to countries with intermediate or high HAV transmission rates 12. This broadly includes:

  • Most of sub-Saharan Africa and North Africa
  • The Middle East and the Indian subcontinent
  • Southeast and Central Asia
  • Much of Latin America and the Caribbean
  • Parts of Eastern Europe

Even tourist-popular regions carry risk if you will eat at local restaurants, visit rural areas, or stay with local families rather than in high-end international hotels. Your travel medicine clinician uses current CDC and WHO destination data to tailor advice to your specific itinerary 1.

How does the hepatitis A vaccine work and when should you get it?

The hepatitis A vaccine is an inactivated virus vaccine — it contains killed virus particles that train your immune system without causing infection. For most adults, a single dose provides protective antibody levels within two to four weeks 2.

A second (booster) dose given roughly six to twelve months after the first is associated with very long-term protection 2. The ACIP recommends the hepatitis A vaccine for all unvaccinated travelers to higher-risk countries 2.

Timing guidance: - Ideally, receive the first dose at least two weeks before departure to allow time for protective immunity to develop. - If your trip is imminent (under two weeks away), a single dose is still recommended — partial protection is better than none. Ask your clinician whether hepatitis A immune globulin makes sense as an additional step in certain situations. - There is also a combination hepatitis A and B vaccine (Twinrix) for travelers who need both.

Who especially needs to confirm their status before travel?

The hepatitis A vaccine is an inactivated virus vaccine — it contains killed virus particles that train your immune system without causing infection. For most adults, a single dose provides protective antibody levels within two to four weeks 2.

A second (booster) dose given roughly six to twelve months after the first is associated with very long-term protection 2. The ACIP recommends the hepatitis A vaccine for all unvaccinated travelers to higher-risk countries 2.

Timing guidance: - Ideally, receive the first dose at least two weeks before departure to allow time for protective immunity to develop. - If your trip is imminent (under two weeks away), a single dose is still recommended — partial protection is better than none. Ask your clinician whether hepatitis A immune globulin makes sense as an additional step in certain situations. - There is also a combination hepatitis A and B vaccine (Twinrix) for travelers who need both.

What else reduces hepatitis A risk while traveling?

The vaccine works alongside — not instead of — safe food and water practices 1. General guidance while traveling:

  • Drink only bottled or purified water; use it for ice and tooth brushing.
  • Eat cooked foods that are still hot.
  • Avoid raw shellfish, unpeeled raw fruit, and raw salads washed in tap water.
  • Wash hands thoroughly before eating, or use an alcohol-based hand sanitizer.

These practices also reduce risk from other waterborne and foodborne illnesses not covered by the hepatitis A vaccine, including typhoid — for which a separate vaccine is available 3.

Common questions

Ideally at least two weeks before departure to allow protective immunity to develop. If your trip is sooner, a single dose given even a few days before departure still provides some protection and is worth getting.

The two-dose series given in childhood is considered to provide long-lasting — likely lifelong — protection for most people. Your vaccination records can confirm this. If records are unavailable, a blood titer test (anti-HAV IgG) can check whether you have protective antibody levels.

Western Europe is considered a low-risk destination, and the vaccine is generally not required for travel to Western Europe. For Eastern Europe, risk is somewhat higher, and your clinician may still recommend it depending on your specific itinerary.

Yes. A combination vaccine (Twinrix) covers both hepatitis A and hepatitis B in a three-dose series. If you need both, this is a convenient option — your clinician can advise whether the combination or separate vaccines are more practical given your departure timeline.

The inactivated hepatitis A vaccine is generally considered safe in pregnancy and is recommended when the risk of exposure during travel is high. A clinician should weigh individual circumstances.

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When to seek care related to hepatitis A

  • —Jaundice (yellow skin or eyes), dark urine, and unusual fatigue within one to seven weeks after travel to a higher-risk region — see a clinician promptly
  • —Nausea, significant right upper abdominal pain, and fatigue after travel — warrants evaluation for hepatitis A and other liver infections
  • —Any jaundice in a person with known liver disease after international travel — same-day or urgent evaluation

This article provides general health education and is not a diagnosis or personalized medical recommendation. Vaccination needs vary by individual health status, itinerary, and departure timing. Speak with a licensed clinician or travel medicine specialist to get a recommendation tailored to your trip and health history.

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References

  1. 1.Centers for Disease Control and Prevention (2023). CDC Yellow Book 2024: Health Information for International Travel. Oxford University Press / CDC. link ✓Destination-specific hepatitis A risk levels, food and water safety precautions for travelers, and the recommendation for hepatitis A vaccination before travel to higher-risk regions
  2. 2.Nelson NP, Link-Gelles R, Hofmeister MG, Romero JR, Moore KL, Ward JW, Schillie SF (2018). Update: Recommendations of the Advisory Committee on Immunization Practices for Use of Hepatitis A Vaccine for Postexposure Prophylaxis and for Preexposure Prophylaxis for International Travel. MMWR Morb Mortal Wkly Rep. doi:10.15585/mmwr.mm6743a5 ✓ACIP recommendations on hepatitis A vaccination for international travel, timing of doses, two-dose series for long-term protection, and indications for immune globulin
  3. 3.Jackson BR, Iqbal S, Mahon B; CDC (2015). Updated recommendations for the use of typhoid vaccine — Advisory Committee on Immunization Practices, United States, 2015. MMWR Morb Mortal Wkly Rep. PMID 25811680 ✓Typhoid vaccine as a separate option for travelers to higher-risk regions, alongside hepatitis A, for food- and water-borne pathogen protection

3 sources, numbered by first appearance. General health information, not medical advice. AI-assisted editorial content — every citation independently verified. Editorial policy

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