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Yellow fever in South Sudan: Update 1

01 February 2024

The World Health Organization reports continued transmission of yellow fever in South Sudan. Twenty cases have now been reported from Western Equatorial State with Yambio county (10), Nzara (5) and Tambura (5) affected.

Yellow fever is an acute viral disease which is transmitted through the bite of an infected mosquito. It is found in tropical areas of Africa and Central and South America.

Advice for Travellers

A traveller's risk of yellow fever is determined by their individual risk assessment. Factors that will influence their risk includes:

  • country or countries to be visited

  • length of stay

  • rate of transmission at destination

  • immunisation status

  • planned activities

Unvaccinated travellers who visit yellow fever endemic areas are at risk of becoming infected.

  • Yellow fever vaccine should be considered (unless contraindicated) for travellers at risk.

  • South Sudan requires a yellow fever vaccination certificate for all travellers aged 9 months and older.

Detailed guidance can be found on the TRAVAX yellow fever disease page.