• The World Health Organization (WHO) announced in an outbreak alert that, from the beginning of 2023 till February 2024, 13 African nations have reported confirmed or suspected yellow fever cases.

• Preliminary data for 2023 shows an 11% case fatality rate.

• It encouraged countries to strengthen surveillance.

• During the last quarter of 2023 and as of 25 February 2024, a total of eight countries (Cameroon, Chad, Congo, DRC, Guinea, Niger, Nigeria, and South Sudan), have reported active YF transmission with confirmed YF cases.

• An outbreak in South Sudan, first reported in December 2023 and centered in West Equatoria State, has risen to 64 patients meeting the case definition, six of whom were fatal.

• It added that six of Cameroon's nine lab-confirmed cases came from a heavily populated district of Douala, the country's largest metropolis, emphasizing the amplification of outbreaks in the urban region due to Aedes mosquitoes.

• WHO recommends using strategic and coordinated measures, including vaccination, to control the spread of infection

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