Yellow Fever is endemic in tropical areas of Africa and Latin America. It is transmitted via the bite of infected mosquitoes. Mosquitoes feed on infected humans or animals mainly monkeys, and then pass on the infection when they feed on other humans or animals.

Yellow fever is the only disease specified in the International Health Regulations (2005) (IHR (2005)) for which countries may require proof of vaccination from travellers as a condition of entry under certain circumstances. Travellers should be aware of yellow fever risks in certain regions.

• The World Health Organization (WHO)’s document titled “Countries with risk of yellow fever transmission and countries requiring yellow fever vaccination” offers comprehensive information regarding yellow fever risks and entry requirements.
• The US Centers for Disease Control and Prevention also provides maps of yellow fever affected areas.

It is important for travellers to be conscious of the risk of yellow fever and consider receiving the yellow fever vaccine. Currently, this vaccine is exclusively available at the Department of Health's two Travel Health Centres (details) .

Travellers are recommended to book a travel health consultation at least 8 weeks before their departure. Travellers will undergo the health consultation with a medical practitioner to determine their suitability for vaccination. Please note that travellers aged 60 years and older, who receive yellow fever vaccine for the first time, are at greater risk of serious side effects following vaccination.

Please visit the Travel Health Service website for information about yellow fever risks, vaccination recommendations, and other travel health advisories.