Fig. 3From: Diagnosis of O. volvulus infection via skin exposure to diethylcarbamazine: clinical evaluation of a transdermal delivery technology-based patchDifferences in skin microfilariae levels from snips taken approximately 1Â cm away from the patch application area taken 3Â days after and one day before application of the respective patch. Solid circles: OCP patch area, open diamonds: LTS-2 patch areaBack to article page