World Health Organization (WHO) data suggest that the rate of yellow fever transmission is increasing, especially in sub-Saharan Africa. The WHO estimates that, after adjustment for underreporting, ∼200,000 cases of yellow fever occur each year [1, 2]. In most of west Africa, with the exception of The Gambia, yellow fever vaccination coverage is low, and there are regular epidemics of yellow fever that fluctuate according to the sylvatic cycle. Since the mid-1990s, epidemics have been reported from Ghana, Gabon, Liberia, Senegal, Benin, and Ivory Coast
A reported a case of yellow fever in a traveler who acquired this infection in The Gambia. Before this case was encountered, the most recent documented case of yellow fever from The Gambia had been diagnosed in 1979
Gambia’s 2010 Multiple Indicator Cluster Survey report shows that only 32 percent of households have an improved drinking water source on their premises. In fact, only 40 percent of the population has access to sanitation equipment and resources. Consequently, water contamination is the cause of 20 percent of deaths under the age of five, which is detrimental to Gambia’s population.