Fig. 4From: Still mesoendemic onchocerciasis in two Cameroonian community-directed treatment with ivermectin projects despite more than 15 years of mass treatmentComparison of community microfilarial load at baseline, 1991, with follow-up surveys in 2011 and 2015, in the communities surveyed in the Bafia health district. Abbreviations: mf, microfilaria; ss, skin snipBack to article page