Hepatitis B Vaccine — Do You Need It for Travel?

Hepatitis B is in many countries' routine childhood vaccination schedules but was introduced at different times — meaning plenty of adults haven't had it, particularly those born before the 1990s. It's worth knowing whether you're covered before travelling to high-prevalence regions.

How Hepatitis B spreads

Unlike Hepatitis A (spread through food and water), Hepatitis B is transmitted through blood and bodily fluids — unprotected sex, sharing needles, and medical or dental procedures with unsterilised equipment. It's also transmitted through tattooing, piercing, and acupuncture if instruments aren't sterile.

This matters for travellers because in many parts of Asia, sub-Saharan Africa, and parts of South America, Hepatitis B prevalence is significantly higher than in Western Europe. Medical treatment abroad — an emergency, a surgical procedure, a dental problem — carries a real transmission risk if infection control standards are variable.

Who needs it

Anyone who hasn't completed the three-dose course and is travelling to a high-prevalence region for more than a short holiday. Particularly relevant for longer-term travellers, backpackers, adventure travellers, healthcare workers on placements, and anyone who might plausibly need medical care abroad.

If you were vaccinated as a child in the UK, US, Australia, or most of Europe since the 1990s you're likely covered. If you're unsure, a blood test (Hepatitis B surface antibody test) will confirm whether you have protective immunity without needing to track down old records.

The vaccine

Three doses on a standard schedule — 0, 1 month, 6 months — provides long-term, likely lifetime protection. An accelerated schedule (0, 7 days, 21 days, with a booster at 12 months) is available if time before travel is short. There is also a combined Hepatitis A+B vaccine (Twinrix) which many travel clinics use for efficiency.

Duration of protection

The three-dose course provides long-term protection — estimated to last at least 20 years and possibly lifetime. Routine boosters are not recommended for healthy adults after a complete course. Healthcare workers have periodic antibody checks, but this isn't necessary for most travellers.