Travelling to new destinations is an exciting experience, but it’s important to stay protected against potential health risks. One such risk is Hepatitis A, a viral infection that spreads through contaminated food and water, particularly in countries with lower sanitation standards. Vaccination is the most effective way to prevent infection, but many travellers ask, hepatitis A vaccine how long does it last? At Eltham Pharmacy Travel Clinic, we provide expert guidance on travel vaccinations to ensure you remain protected throughout your journey. In this guide, we explore how long the Hepatitis A vaccine offers immunity and whether you need a booster before your next trip.

Understanding the Hepatitis A Vaccine

The Hepatitis A vaccine protects against the Hepatitis A virus, which causes inflammation of the liver and can lead to severe illness, particularly in adults. The vaccine is highly effective and available as a single vaccine or in combination with the Hepatitis B vaccine.

The standard vaccination schedule involves two doses:

First dose – Provides short-term protection and is recommended at least two weeks before travel.

Second dose (booster) – Given 6 to 12 months after the first dose, this provides long-term immunity.

While even a single dose offers some protection, completing the two-dose schedule is essential for long-term immunity.

How Long Does Hepatitis A Immunity Last?

For those asking, “hepatitis A vaccine: how long does it last?”, research suggests that a single dose provides protection for approximately 12 to 18 months. Two doses offer immunity lasting at least 25 years, with many studies indicating that protection may be lifelong.

The effectiveness of the vaccine varies depending on individual immune responses, but most people who complete the two-dose schedule remain protected for decades.

Do You Need a Hepatitis A Booster?

For most travellers, a booster dose is not required once both doses of the vaccine have been received. Studies show that immunity remains strong for at least 25 years, and experts believe it could last a lifetime. However, if it has been more than 20 years since your last dose and you are travelling to a high-risk area, a blood test to check your immunity levels may be an option.

For individuals who have only had one dose, a booster is strongly recommended if you plan to travel again, as a single dose only provides temporary protection.

Who Should Get the Hepatitis A Vaccine?

While anyone can contract Hepatitis A, certain travellers are at a higher risk, including those visiting Africa, Asia, the Middle East, Central and South America. Travellers staying in rural areas with limited sanitation and individuals consuming street food or untreated water should also get vaccinated and take precautions.

It is important for long-term travellers, backpackers, or those working abroad in high-risk countries, and those with pre-existing liver conditions to get vaccinated.

If you are unsure whether you need the vaccine, visit Eltham Pharmacy for a consultation before your trip.

How Effective is the Hepatitis A Vaccine?

The Hepatitis A vaccine is highly effective, offering nearly 100% protection after two doses. In addition to vaccination, taking preventive measures such as washing hands frequently, avoiding raw or undercooked food, and drinking bottled or purified water further reduces the risk of infection.

What If You Were Vaccinated a Long Time Ago?

If you received the Hepatitis A vaccine many years ago, you are likely still protected if you had both doses. However, if you are unsure or only had one dose, you can:

Check your vaccination records to confirm if you completed the course.

Have a blood test to determine your immunity levels.

Get a booster dose if advised by a healthcare professional.

At Eltham Pharmacy in London, we can help assess your immunisation status and provide the necessary advice or booster doses if required.

Final Advice for Travellers

If you are planning a trip to a region where Hepatitis A is prevalent, getting vaccinated well in advance is the best way to stay protected. Hepatitis A vaccine: how long does it last? The good news is that two doses provide long-term immunity, potentially lasting a lifetime. If you have only had one dose or it has been many years since your vaccination, it may be worth checking your immunity before travelling.

At Eltham Pharmacy, we offer comprehensive travel health services, including vaccinations and expert advice on staying safe abroad. If you need the Hepatitis A vaccine or are unsure about your immunity status, visit us today for a consultation.

Book Your Travel Vaccination Today

Ensure a safe and worry-free trip by protecting yourself against Hepatitis A. Contact Eltham Pharmacy to book your Hepatitis A vaccination and receive tailored travel health advice from our experienced pharmacists.

This blog was written on behalf of Eltham Pharmacy by Pharmacy Mentor.