Multisite performance evaluation of an enzyme-linked immunosorbent assay for detection of Giardia, Cryptosporidium, and Entamoeba histolytica antigens in human stool

J Clin Microbiol. 2012 May;50(5):1762-3. doi: 10.1128/JCM.06483-11. Epub 2012 Feb 29.

Abstract

A novel fecal antigen detection assay for fresh and frozen human samples that detects but does not differentiate Giardia spp, Cryptosporidium spp, and Entamoeba histolytica, the Tri-Combo parasite screen, was compared to three established enzyme-linked immunosorbent assays (ELISAs) at three international sites. It exhibited 97.9% sensitivity and 97.0% specificity, with positive and negative predictive values of 93.4% and 99.1%, respectively. The Tri-Combo test proved a reliable means to limit the use of individual parasite ELISAs to positive samples.

Publication types

  • Comparative Study
  • Evaluation Study
  • Multicenter Study
  • Research Support, N.I.H., Extramural

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Antigens, Protozoan / analysis*
  • Child
  • Child, Preschool
  • Clinical Laboratory Techniques / methods*
  • Cryptosporidium / isolation & purification*
  • Entamoeba histolytica / isolation & purification*
  • Enzyme-Linked Immunosorbent Assay / methods
  • Feces / parasitology*
  • Female
  • Giardia / isolation & purification*
  • Humans
  • Infant
  • Male
  • Middle Aged
  • Parasitology / methods*
  • Sensitivity and Specificity
  • Young Adult

Substances

  • Antigens, Protozoan