Hospital-Based Seroprevalence and Socio-Environmental Predictors of Human Leishmaniasis in Baringo County, Kenya: Implications for One Health Surveillance and Control

Background

Leishmaniasis is a vector-borne neglected tropical disease caused by obligate intracellular protozoan parasites of the genus Leishmania and transmitted by bites from infected female phlebotomine sand flies. Visceral leishmaniasis (VL), the most severe clinical form, remains a major public health concern in Eastern Africa and a priority for control and elimination. Although Baringo County is a well-established endemic focus in Kenya, the spatial distribution of human exposure and the socio-environmental determinants of infection remain inadequately characterized. This hospital-based cross-sectional study therefore estimated Leishmania seroprevalence. It assessed the sociodemographic, behavioral, and environmental predictors of seropositivity among patients presenting with clinical features suggestive of VL in two endemic sub-counties of Baringo County.