Conference abstract
A malacological survey revealed residual transmission of intestinal schistosomiasis in Ndikinimeki Health District (Centre Region, Cameroon) despite introduction of complementary control strategies: prospects for elimination
Pan African Medical Journal - Conference Proceedings. 2023:18(172).03
Oct 2023.
doi: 10.11604/pamj-cp.2023.18.172.2290
Archived on: 03 Oct 2023
Contact the corresponding author
Keywords: Malacological survey, schistosomaisis, persistent transmission, Ndikinimeki
Oral presentation
A malacological survey revealed residual transmission of intestinal schistosomiasis in Ndikinimeki Health District (Centre Region, Cameroon) despite introduction of complementary control strategies: prospects for elimination
Kengne Fogang Hervé1,&, Nana Djeunga Hugues Clotaire2
1University of Buea, Faculty of Health Sciences, Departement of Public Health and Hygiene, Cameroon, 2Centre for Research on Filariasis and other Tropical Diseases (CRFilMT), Cameroon
&Corresponding author
Introduction: schistosomiasis remains a public health problem, especially in poor communities with limited access to adequate water and sanitation. In endemic countries, control measures essentially rely on school-based preventive chemotherapy with praziquantel which is insufficient to interrupt schistosomiasis transmission in endemic foci such as Ndikinimeki Health District in Cameroon. The objective was to investigate whether a residual transmission has been sustained by snail intermediate hosts, despite more than 10 rounds of School-based PC and the introduction of complementary strategies
Methods: a cross-sectional malacological survey was conducted in March 2021 in selected water bodies of the Ndikinimeki Health District. Snails were collected for seven days using a standardized scooping technique. Collected snails were identified using the shell morphology feature and maintained in the laboratory for 30 days during which they were daily tested for cercarial emission.
Results: a total of 342 snails were collected and identified as Biomphalaria pfeifferi for 81.3% of them and Biomphalaria camerunensis for 18.7%. Overall 20 (5.84%) of these Biomphalaria species found in Mock River in Baloua community and Mbeyebeng stream in Kiboum community were shedding Schistosoma spp cercariae.
Conclusion: these findings confirm the existence of residual transmission of schistosomiasis in the Ndikinimeki Health District despite the implementation of complementary strategies, thus raising the need to implement snail control to complement current strategies and therefore accelerate the schistosomiasis transmission interruption in this focus and reach the 2030 goals.
A malacological survey revealed residual transmission of intestinal schistosomiasis in Ndikinimeki Health District (Centre Region, Cameroon) despite introduction of complementary control strategies: prospects for elimination
Kengne Fogang Hervé1,&, Nana Djeunga Hugues Clotaire2
1University of Buea, Faculty of Health Sciences, Departement of Public Health and Hygiene, Cameroon, 2Centre for Research on Filariasis and other Tropical Diseases (CRFilMT), Cameroon
&Corresponding author
Introduction: schistosomiasis remains a public health problem, especially in poor communities with limited access to adequate water and sanitation. In endemic countries, control measures essentially rely on school-based preventive chemotherapy with praziquantel which is insufficient to interrupt schistosomiasis transmission in endemic foci such as Ndikinimeki Health District in Cameroon. The objective was to investigate whether a residual transmission has been sustained by snail intermediate hosts, despite more than 10 rounds of School-based PC and the introduction of complementary strategies
Methods: a cross-sectional malacological survey was conducted in March 2021 in selected water bodies of the Ndikinimeki Health District. Snails were collected for seven days using a standardized scooping technique. Collected snails were identified using the shell morphology feature and maintained in the laboratory for 30 days during which they were daily tested for cercarial emission.
Results: a total of 342 snails were collected and identified as Biomphalaria pfeifferi for 81.3% of them and Biomphalaria camerunensis for 18.7%. Overall 20 (5.84%) of these Biomphalaria species found in Mock River in Baloua community and Mbeyebeng stream in Kiboum community were shedding Schistosoma spp cercariae.
Conclusion: these findings confirm the existence of residual transmission of schistosomiasis in the Ndikinimeki Health District despite the implementation of complementary strategies, thus raising the need to implement snail control to complement current strategies and therefore accelerate the schistosomiasis transmission interruption in this focus and reach the 2030 goals.
