Jasins Pharmacy
Key Takeaways
- A single dose of the hepatitis A vaccine provides protection for approximately one year, making it suitable for most short-term travellers.
- After the full two-dose course (initial dose plus booster), protection is expected to last at least 25 years and may be lifelong.
- The booster dose should be given between 6 and 12 months after the initial vaccination to extend long-term protection.
- The hepatitis A vaccine is suitable for adults and children from the age of one year and is considered safe and highly effective.
- A combined hepatitis A and B vaccine is available for those who need protection against both viruses, reducing the number of injections required.
- Jasins Pharmacy in Hounslow offers hepatitis A vaccination with same-week appointments available — no GP referral needed.
The Importance of Hepatitis A Vaccination
Hepatitis A is a highly contagious viral infection that affects the liver, caused by the hepatitis A virus (HAV). It is spread primarily through the faecal-oral route — most commonly via contaminated food and water or close contact with an infected person. While hepatitis A is uncommon in the UK due to high sanitation standards, it remains widespread across many parts of the world, including South Asia, Sub-Saharan Africa, Southeast Asia, and Latin America, where it poses a genuine risk to unvaccinated travellers.
Although most people recover fully from hepatitis A, the illness can be debilitating — causing jaundice, extreme fatigue, nausea, and abdominal pain that can last for several weeks or even months. In older adults and those with pre-existing liver conditions, hepatitis A can lead to serious complications. The vaccine offers a reliable, long-lasting shield against infection and is one of the most straightforward steps any traveller can take to protect their health before visiting a high-risk destination.
The Hepatitis A Vaccination Course
Understanding the hepatitis A vaccination course is key to making sure you are fully protected both in the short term and for future travels.
The First Dose
The initial hepatitis A vaccine injection stimulates the immune system to produce antibodies against the virus. Protection begins to develop within two weeks of the first dose, and by around four weeks the majority of people have developed sufficient immunity to be well protected. The first dose alone is considered adequate for most travellers planning a single trip, as it provides around one year of protection — more than enough cover for most holiday durations.
The Booster Dose
For anyone who plans to travel repeatedly to hepatitis A risk areas, or who simply wants the reassurance of long-term protection, the booster dose is essential. Given between six and twelve months after the initial injection, the booster significantly amplifies and extends the immune response. After the full two-dose course is complete, protection is expected to last for a minimum of 25 years, and mathematical modelling of antibody decay suggests protection may well extend for life in many individuals.
It is worth noting that the booster does not need to be given within a rigid timeframe — even if several years have passed since your first dose, the booster can still be administered and will restore long-term protection without the need to restart the course from scratch.
It is never too late to complete your course. Contact us to book your booster dose at Jasins Pharmacy in Hounslow today and secure long-term protection.
Who Needs the Hepatitis A Vaccine?
The hepatitis A vaccine is recommended for a wide range of travellers and individuals in at-risk groups. Working out whether vaccination applies to you is the first step towards making sure your protection is in place before you need it.
Travellers to High-Risk Destinations
Anyone travelling to a country where hepatitis A is more prevalent should strongly consider vaccination, regardless of the standard of accommodation they intend to stay in. The virus can be present in the local food and water supply even at reputable establishments, and a single contaminated meal or drink is all it takes to become infected. Destinations where hepatitis A vaccination is commonly recommended include India, Pakistan, Bangladesh, much of Sub-Saharan Africa, Southeast Asia, and parts of Latin America and the Middle East.
People in At-Risk Groups
Beyond travellers, the hepatitis A vaccine is also recommended for people with chronic liver disease, those who inject drugs, men who have sex with men, and individuals who may be exposed to the virus through their work — such as sewage workers, healthcare workers in certain settings, and staff in early years childcare. If you fall into any of these categories, speak to our pharmacists at Jasins Pharmacy to discuss whether vaccination is appropriate for your circumstances.
The Combined Hepatitis A and B Vaccine
If your travels put you at risk of both hepatitis A and hepatitis B, there is a combined vaccine that protects against both viruses in one convenient course. This is a practical and convenient option that reduces the total number of injections needed and is particularly useful for those travelling to destinations where both viruses are prevalent.
The combined hepatitis A and B vaccine (Twinrix) is given as a course of three doses on a standard schedule of 0, 1, and 6 months, or as an accelerated four-dose schedule of 0, 7, 21 days and 12 months for those with limited time before travel. Our pharmacists at Jasins Pharmacy in Hounslow will advise on whether the combined vaccine is the right choice for your specific travel plans and health history.
Of course, hepatitis A and B are just two of the many infections worth protecting yourself against before travelling. The vaccines you need will depend on where you are heading and what you plan to do when you get there. Enter your destination below for a quick overview of the vaccinations commonly recommended for your trip, then book a consultation with our team at Jasins Pharmacy in Hounslow for advice tailored specifically to you:
Staying Protected with Food and Water Hygiene
While the hepatitis A vaccine is highly effective, maintaining good food and water hygiene habits while travelling remains an important additional layer of protection. The vaccine does not cover every possible route of infection, and adopting sensible precautions alongside vaccination gives you the strongest possible defence. When travelling in high-risk areas, stick to bottled or boiled water, avoid ice in drinks, eat freshly cooked hot food, peel your own fruit and vegetables, and wash hands thoroughly before eating and after using the toilet.
Take the first step towards worry-free travel. Call us to book a hepatitis A consultation with our knowledgeable team at Jasins Pharmacy in Hounslow today.
Frequently Asked Questions
Our travel health team at Jasins Pharmacy in Hounslow has put together answers to the hepatitis A vaccine questions we are asked time and time again.
Do I need the hepatitis A vaccine if I have had it before?
If you completed the full two-dose course of the hepatitis A vaccine, you are likely to be protected for at least 25 years and may not need a further dose. However, if you only received the first dose and never had the booster, it is worth speaking to our pharmacists at Jasins Pharmacy to confirm your status and arrange the booster if appropriate.
How quickly does the hepatitis A vaccine take effect?
Protection begins to develop within two weeks of the first injection, with the majority of people achieving good immunity by around four weeks. For this reason, it is advisable to have the hepatitis A vaccine at least two to four weeks before travelling to a risk area, though even a dose given closer to departure will still provide some level of protection.
Can I have the hepatitis A vaccine at the same time as other travel vaccines?
Yes — in most cases the hepatitis A vaccine can be given at the same appointment as other travel vaccines, which helps to minimise the number of visits needed before your trip. Our pharmacist will advise on the most appropriate schedule during your travel health consultation at Jasins Pharmacy in Hounslow.
Is the hepatitis A vaccine available on the NHS?
The hepatitis A vaccine is not routinely available on the NHS for travel purposes and is usually obtained privately. It may be available on the NHS for certain at-risk groups, such as those with chronic liver disease or men who have sex with men — our pharmacists can advise on your eligibility during your consultation.
What are the side effects of the hepatitis A vaccine?
The hepatitis A vaccine is generally very well tolerated, and most people experience no significant side effects. Some individuals may notice mild soreness or redness at the injection site, a slight headache, or brief fatigue, all of which typically resolve within a day or two without any treatment.
Is the hepatitis A vaccine suitable for children?
Yes — the hepatitis A vaccine is suitable for children aged one year and over, and is recommended for any child travelling to a destination where hepatitis A is more common. If you are planning a family trip to a high-risk destination, our travel health team at Jasins Pharmacy in Hounslow can advise on the best vaccination schedule for children of all ages.
Hepatitis A Protection Worth Having
The hepatitis A vaccine is one of the most effective travel health investments you can make — a straightforward two-dose course that can provide decades of reliable protection against a disease that is both unpleasant and entirely preventable. From first-time travellers to frequent flyers, getting expert advice on your hepatitis A vaccination status before you depart is one of the most important steps you can take for your health abroad. At Jasins Pharmacy in Hounslow, our experienced travel health team is ready to review your vaccination history, answer your questions, and ensure you are fully protected before you go.
Getting vaccinated against hepatitis A is one of the simplest things you can do to stay healthy abroad — book your appointment at Jasins Pharmacy in Hounslow today and travel with the confidence that your health is well taken care of.
Disclaimer: The information provided in this blog post is intended for general informational purposes only and should not be treated as medical advice. Always consult a qualified medical professional, pharmacist, or GP before starting any vaccination course, treatment, or travel health programme — particularly if you have underlying health conditions, are pregnant, or are taking regular medication.
