title: The indirect hemagglutination test for onchocerciasis performed with blood collected on filter paper.
abstract: In Guatemala, an indirect hemagglutination (IHA) test for onchocerciasis, performed with a crude saline extract of Onchocerca volvulus and blood samples taken on filter paper, showed a high level of sensitivity and specificity. IHA titers of blood samples from the ear lobe taken on filter paper and of sera obtained by venipuncture showed a high correlation.
mesh_terms: D000818:Animals; D003937:Diagnosis, Differential; D005243:Feces / Q000469:parasitology; D006166:Guatemala; D006386:Hemagglutination Tests / Q000592:standards; D006801:Humans; D009854:Onchocerca; D009855:Onchocerciasis / Q000175:diagnosis*; D012867:Skin / Q000469:parasitology; D013048:Specimen Handling / Q000379:methods*