The project Visceral Leishmaniasis and Malnutrition is a cohort study that aimed to assess the association between malnutrition and visceral leishmaniasis (VL). It was conducted in Libo Kemkem and Fogera districts of the Amhara Regional State in Ethiopia. Clinical, anthropometric, biochemical, immunological, parasitological and sociodemographic data of school age children from VL high prevalence communities were collected in December 2009, May 2010 and February 2011.