[A comparative study of the parasitological techniques: Kato-Katz and coprotest].
Parasitological diagnosis should be appropriately conducted with high sensitivity and specificity so that intestinal parasite can be detected as the specific treatment depends on this result. A comparative study was developed to evaluate the concordance between the Kato-Katz and coprotest methods in the detection of helminthes in 332 individuals in Pedro de Toledo. A significant difference was found in the case of the Trichuris trichiura - 16.2% with the Kato-Katz method and 7.5% with the coprotest method. Therefore, the positive and negative samples of the coprotest method were compared with the number of eggs per gram of feces (epg) obtained by the Kato-Katz method. When the coprotest method was negative, 65 epg of Trichuris trichiura were found by the Kato-Katz method and when the coprotest was positive the epg according to the Kato-Katz were far higher, 199 epg, which demonstrated that the coprotest was inferior to the Kato-Katz method regarding low intensity infections.
Mendes
Célia Regina
CR
Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP. biomendes1968@hotmail.com <biomendes1968@hotmail.com>
Teixeira
Angela Terezinha Lauand Sampaio
AT
Pereira
Rosana Aparecida Trevisan
RA
Dias
Luis Candido de Souza
LC
D000723:Ancylostomatoidea / Q000302:isolation & purification; D000818:Animals; D017164:Ascaris lumbricoides / Q000302:isolation & purification; D005243:Feces / Q000469:parasitology*; D006373:Helminthiasis / Q000175:diagnosis*; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000175:diagnosis*; D009348:Nematoda / Q000302:isolation & purification*; D010270:Parasite Egg Count / Q000379:methods; D012550:Schistosoma mansoni / Q000302:isolation & purification*; D012680:Sensitivity and Specificity; D014258:Trichuris / Q000302:isolation & purification