Yellow Fever

Yellow fever is a viral hemorrhagic disease transmitted by infected Aedes aegypti mosquitoes. The number of cases has increased over the past 20 years due to declining population immunity, deforestation, urbanization, population movements, and climate change. The World Health Organization (WHO) estimates that there are 200,000 cases of yellow fever and 30,000 deaths every year, 90% of which occur in Africa.

Once the virus has been contracted, it incubates in the body for three to six days, followed by infection that can occur in one or two phases:

As there is no treatment for yellow fever, preventive vaccination is crucial. WHO recommends routine infant immunization as well as mass vaccination campaigns in high-risk areas together with measures to control the Aedes aegypti mosquito in urban centers.

The GAVI Alliance has been providing support for increased yellow fever immunization coverage since 2007. One of the conditions for receiving funding is to implement AEFI (Adverse Events Following Immunization) surveillance. In this context, AMP supports yellow fever AEFI surveillance in collaboration with other organizations.