What should you know about sanofi yellow fever vaccine?

Yellow fever spreads through infected mosquitoes and can cause a feverish illness that sometimes affects the liver and other organs. A yellow fever vaccine may be recommended for travel risk or required for entry documentation. Because it is a live vaccine, a trained clinician must consider your health history before offering it.

Tell the clinician about pregnancy, immune-suppressing treatment, thymus problems, severe allergies, previous yellow fever vaccination and your exact route. Different destinations and transit arrangements can carry different health and certificate requirements.

Book a travel health review early, bring your vaccination record and provide your departure, arrival and transit details. Follow the service's instructions about the certificate and keep it with your travel documents. Prevent mosquito bites with repellent, clothing that covers skin, window screens and suitable accommodation, even after vaccination.

Get emergency help for facial or throat swelling, breathing difficulty, collapse or widespread hives after the injection. During or after travel, seek prompt medical care for fever, severe headache, jaundice, confusion, persistent vomiting or bleeding. Tell the clinician where you travelled and when you received the vaccine.

Ask whether vaccination is recommended for your itinerary, whether your medical history changes the advice, when documentation is valid, which reactions are expected, and how to protect yourself from mosquito bites.