If you are travelling to parts of Africa or South America, yellow fever vaccination is not just recommended, it is often a legal entry requirement. Understanding what the vaccine involves, who needs it, and when to get it will help you travel with confidence and without delays at the border.
What Is Yellow Fever and Why Does the Vaccine Matter?
Yellow fever is a serious viral illness transmitted through the bites of infected mosquitoes. It can cause jaundice, organ failure, and, in severe cases, can be fatal. There is no specific treatment once contracted, which makes prevention essential.
The yellow fever vaccine is the single most effective protection available. A single dose typically provides lifelong immunity for most people, and the International Certificate of Vaccination or Prophylaxis (ICVP), commonly known as the yellow fever certificate, is the official proof required by many countries before entry.
Which Countries Require a Yellow Fever Certificate?
Many countries in sub-Saharan Africa and tropical South America sit within yellow fever endemic zones. Some nations, including Angola, Democratic Republic of Congo, Ghana and Brazil, require proof of vaccination for all travellers. Others require it only if you are arriving from a country with transmission risk.
Entry requirements can change. Always check the current requirements for your destination via the NHS Fit for Travel website (fitfortravel.nhs.uk) or GOV.UK travel advice before your appointment.
Who Should Get the Yellow Fever Vaccine?
The vaccine is recommended for most travellers aged nine months and over who are visiting endemic regions. Your pharmacist will carry out a short health assessment before administering the vaccine to confirm it is appropriate for you.
The vaccine requires careful consideration for:
- Pregnant women (seek specialist advice)
- Adults aged 60 and over, particularly first-time travellers to endemic regions
- People with weakened immune systems or thymus disorders
- Those with a known allergy to egg or gelatin
If any of these apply, your pharmacist will advise accordingly and, where necessary, refer you for specialist guidance.
How Long Before Travel Should You Get Vaccinated?
You should aim to receive the yellow fever vaccine at least 10 days before departure. This is the internationally recognised period required for the vaccine to take full effect and for your certificate to become valid. For advice on when to book, read our guide on when to book a travel clinic appointment.
What Happens at Your Appointment?
Your consultation at Ham Pharmacy Group is conducted by a trained travel health pharmacist. We will review your destination, travel itinerary and medical history, discuss any relevant health risks, and administer the vaccine if it is suitable for you. You can view our full range of travel vaccinations and book via our travel clinic page. You will receive your official yellow fever certificate at the time of vaccination — keep this document safe as it will be required at border control.
Is One Dose Enough?
For the majority of travellers, a single dose provides lifelong protection and a valid certificate with no expiry date. There are limited circumstances where a booster may be recommended. Your pharmacist will advise if a second dose applies to you. If you are also travelling to a malaria-risk region, you may wish to review our anti-malarial travel health information alongside your yellow fever appointment.