title: Comparison of potassium hydroxide digestion and a modified Kato technique for the semi-quantitative estimation of Schistosoma mansoni eggs in faeces.
abstract: A simple method for the semi-quantitative estimation of eggs of Schistosoma mansoni in stools, based on digestion of faeces in 4% potassium hydroxide (KOH), is described. The relative performance of KOH digestion and a modified Kato method showed that the former was more sensitive and that the KOH/Kato ratio for the geometric mean number of eggs per gram, in stools positive by both methods, was 3.51.
authors.affiliation: Tropical Disease Research Centre, Ndola, Zambia.
authors.forename: I
authors.initials: I
authors.lastname: Marshall
authors.forename: J A
authors.initials: JA
authors.lastname: Morrison
authors.forename: W
authors.initials: W
authors.lastname: Nyirenda
mesh_terms: D005243:Feces / Q000469:parasitology*; D006801:Humans; D006878:Hydroxides; D010270:Parasite Egg Count / Q000379:methods*; D011188:Potassium; D017680:Potassium Compounds; D012555:Schistosomiasis mansoni / Q000469:parasitology*
chemical_list: D006878:Hydroxides; D017680:Potassium Compounds; D011188:Potassium; C029943:potassium hydroxide