Hepatitis A and Global Travel: A UK Patient Guide to Risks and Prevention

Hepatitis A is a liver infection caused by the Hepatitis A virus (HAV). Unlike Hepatitis B or C, it does not typically cause long-term chronic liver disease, but it can make patients feel extremely unwell for several weeks or even months. According to NHS guidance, the virus is primarily transmitted through the faecal-oral route. This occurs when a person consumes food or water contaminated by the faeces of an infected individual.

For UK travellers, the risk is highest when visiting parts of the world where sanitation is poor or access to clean water is limited. This includes regions in Africa, Asia, Central and South America, and parts of Eastern Europe. Even in luxury resorts, outbreaks can occur if food handlers are infected or if ice and raw produce are washed in contaminated water.

Symptoms of Hepatitis A usually appear between two and seven weeks after exposure. In children, the infection is often mild or even asymptomatic, but in adults, it tends to be more severe. Common signs to watch for include:

• Jaundice: Yellowing of the skin and the whites of the eyes.
• Dark urine and pale stools: Indicating liver distress.
• Extreme fatigue: Feeling unusually tired for extended periods.
• Loss of appetite: Often accompanied by nausea or stomach pain.
• Itchy skin: Caused by the buildup of bile salts in the body.
• A high temperature: Often one of the first signs of the infection.

If you develop these symptoms after returning from a high-risk area, it is essential to seek medical advice to confirm the diagnosis through a blood test.

When travelling abroad, many common habits can inadvertently increase your risk of contracting Hepatitis A. The virus is highly resilient and can survive for long periods outside the body. You may be at risk if you:

• Drink tap water or use ice made from local water supplies.
• Eat raw shellfish, which can concentrate the virus from contaminated seawater.
• Consume salads or fruit that have been washed in local water.
• Eat food from street vendors where hand-washing facilities may be inadequate.
• Have close physical contact with someone who has the virus.

The National Institute for Health and Care Excellence (NICE) emphasizes that travel-related cases are a significant contributor to Hepatitis A infections in the UK, particularly among those visiting friends and relatives in endemic areas.

The most effective way to prevent Hepatitis A is through vaccination. The Hepatitis A vaccine is highly effective and provides long-lasting protection. Most UK travellers heading to high-risk destinations are advised to have the first dose at least two weeks before departure. A second booster dose given 6 to 12 months later can provide protection for up to 25 years.

The 'Boil it, Cook it, Peel it, or Forget it' Rule

In addition to vaccination, practicing strict hygiene is crucial. Always wash your hands thoroughly with soap and water after using the toilet and before handling food. If clean water is unavailable, use an alcohol-based hand sanitiser. Stick to bottled or boiled water for drinking and brushing teeth, and avoid raw foods that may have been washed in tap water.

If you are planning a trip, you can speak to a GP online to discuss your travel itinerary. A private online doctor can provide a tailored risk assessment based on your destination, duration of stay, and planned activities. They can advise on whether you need the Hepatitis A vaccine alongside other travel immunisations such as Typhoid or Hepatitis B.

Additionally, if you have recently returned from travel and are feeling unwell with flu-like symptoms or digestive issues, an online consultation is a convenient first step. A doctor can review your symptoms and advise on the necessary diagnostic steps, such as blood tests or liver function tests, ensuring you receive the correct care without unnecessary delay.

There is no specific treatment for Hepatitis A; the body’s immune system typically clears the virus on its own. Management focuses on relieving symptoms and preventing complications. If diagnosed, you should:

• Rest: Allow your body to recover from the intense fatigue.
• Stay hydrated: Drink plenty of water, especially if you have been vomiting.
• Avoid alcohol: Alcohol puts extra strain on a liver already fighting an infection.
• Take paracetamol cautiously: Only use it as directed by a healthcare professional, as the liver processes this medication.

You are most infectious during the two weeks before symptoms appear and for about one week after jaundice develops. During this time, it is vital to avoid preparing food for others to prevent spreading the virus.