title: Truly infection-free persons are rare in areas hyperendemic for African onchocerciasis.
authors.forename: D O
authors.initials: DO
authors.lastname: Freedman
authors.forename: T R
authors.initials: TR
authors.lastname: Unnasch
authors.forename: A
authors.initials: A
authors.lastname: Merriweather
authors.forename: K
authors.initials: K
authors.lastname: Awadzi
mesh_terms: D000349:Africa / Q000453:epidemiology; D000818:Animals; D018509:DNA, Helminth / Q000032:analysis*; D006801:Humans; D009854:Onchocerca / Q000302:isolation & purification; D009855:Onchocerciasis / Q000175:diagnosis / Q000453:epidemiology*; D016133:Polymerase Chain Reaction; D012867:Skin / Q000469:parasitology
chemical_list: D018509:DNA, Helminth