Malaria interventions-vector control using long-lasting insecticidal nets (LLINs) or indoor residual spraying, chemoprevention and case management including diagnosis and treatment of infections-are highly effective and affordable. These interventions have led to a significant reduction in malaria prevalence, and a marked decline in morbidity and mortality associated. Despite these increasing control efforts, this parasitic disease is still persisting in most African countries. The aim of this study was to investigate the risk factors associated with malaria infection in the Obang Valley (North Western Cameroon) in order to identify potential bottlenecks in the malaria elimination procedure. A structured questionnaire was administered to a random sample of 100 individuals visiting the Mbakong Health Centre or attending the Obang Government High School. Association between malaria infection and individual household or environmental risk factors was investigated using logistic regression models. Malaria infection was not significantly associated with LLIN possession (p = 0.999) since 97% of interviewees received them free of charge. The age and habits (having each bed cover by a LLIN, time when doors and windows are closed or antimalarial medicine used) of study participants were however significantly associated with malaria infection (p < 0.033). These findings suggest that although the interventions recommended by the World Health Organization may help in reducing malaria prevalence and burden, it is of prime importance to also tackle associated risk factors which are mostly related to individual habits.

Socio-economic and socio-demographic factors have been considered as critical in disease epidemiology and need to be taken into consideration when designing health interventions. It is therefore strongly recommended to investigate population ownership to ensure sustainability of a given intervention. To this end, a household-based cross sectional survey was conducted to assess knowledge and perceptions regarding sleeping sickness and its control among populations of the four epicenter villages (Lambi, Bidjouka, Memel 1, and Ebimimbang) of the Bipindi sleeping sickness focus (South Region, Cameroon). It was found that the population of Bipindi is stable (64.0% of participants having spent on average 22 years in this focus), with high education level (64.8% having reached at least the secondary level). Overall, 92.8% (95% CI: 86.9-96.2) of the participants were aware of sleeping sickness or Human Africa Trypanosomiasis (HAT) and 68.3% (95% CI: 59.6-75.9) have been in contact with people who had suffered from this disease. Males had better knowledge of sleeping sickness clinical signs and mode of transmission than their female counterparts. Knowledge was associated both with gender (males exhibiting better knowledge of clinical signs and mode of transmission than females) and age group (participants aged 30-57 years having heard of HAT more frequently than people of other age groups). These findings suggest that the population of Bipindi exhibit knowledge and perceptions that can be useful for appropriation and sustainability of control interventions.