Risks and considerations of yellow fever vaccination

A sore arm, mild fever, headache or muscle aches can occur after vaccination. Rarely, a serious reaction can affect breathing or cause widespread swelling. Because this is a live vaccine, a clinician must consider age, immune-system problems, thymus disorders, pregnancy, allergies and previous vaccine reactions before recommending it.

The decision also depends on your destination, itinerary and entry requirements. A travel clinician can weigh the health risk from yellow fever against vaccine precautions and explain whether a medical exemption or another plan is appropriate.

Book a travel health consultation well before departure. Bring your itinerary, vaccination record, medicine list and details of allergies or immune conditions. Tell the clinician if you are pregnant, trying to conceive, breastfeeding, unwell, or have had a severe reaction to a vaccine. Stay for the observation period advised after the injection and keep your certificate with your travel documents.

Seek urgent help for difficulty breathing, swelling of the face or throat, collapse, widespread hives or severe weakness after vaccination. Contact a clinician if fever persists, symptoms are worsening, or you are concerned about a reaction. Do not delay advice when travelling to an area where yellow fever exposure is possible.

Ask whether the vaccine is recommended for your exact itinerary, which reactions are expected, how your medical history changes the decision, and what documentation you need for entry.