Epidemiological studies on onchocerciasis by means of a new field technique.
A new membrane filter concentration technique for the detection and quantification of Onchocerca volvulus microfilariae in skin snips was compared for sensitivity and efficiency with a widely used "standard" technique. A field study was carried out in five villages in an onchocerciasis focus north-east of the town of Sokodé, Mô river valley, Togo. Use of the new technique resulted in a substantial rise in the observed prevalence and density of microfilariae.
D005370:Filarioidea / Q000302:isolation & purification*; D006801:Humans; D008722:Methods; D008842:Microfilariae / Q000302:isolation & purification*; D009855:Onchocerciasis / Q000175:diagnosis* / Q000453:epidemiology; D012867:Skin / Q000469:parasitology*; D014037:Togo