Comparison of potassium hydroxide digestion and a modified Kato technique for the semi-quantitative estimation of Schistosoma mansoni eggs in faeces.
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.
Marshall
I
I
Tropical Disease Research Centre, Ndola, Zambia.
Morrison
J A
JA
Nyirenda
W
W
D005243:Feces / Q000469:parasitology*; D006801:Humans; D006878:Hydroxides; D010270:Parasite Egg Count / Q000379:methods*; D011188:Potassium; D017680:Potassium Compounds; D012555:Schistosomiasis mansoni / Q000469:parasitology*
D006878:Hydroxides; D017680:Potassium Compounds; D011188:Potassium; C029943:potassium hydroxide