Cryptosporidium Infection: Diagnostic Techniques.
From: Clinic of Infectious Diseases, Department of Molecular Biology, University of Siena, Siena, Italy. magi@unisi.it
Parasitology research
- Publish Date: Jan 2006
- ISSN: 0932-0113
- Volume: 98
- Issue: 2
- Pages: 150-2
- Medium: Print
- Language: English
- Citation (JAMA): Magi Barbara, Canocchi Valentina, Tordini Giacinta, et al. Cryptosporidium Infection: Diagnostic Techniques.. Parasitol. Res. Jan 2006;98:150-2
Abstract
The aim of this study was to compare a rapid immunological test and a PCR method with the conventional morphological technique for the identification of Cryptosporidium in faecal samples. Cryptosporidium was found in five samples by Kinyoun acid-fast stain. Five samples yielded positive results on immunoassay, three of which yielded negative results on microscopy. Thus, only two patients were positive for Cryptosporidium according to both methods. PCR analysis confirmed only one sample as positive. Non-homogeneous distribution of parasites in stool samples, lack of oocysts in the tested sample and antigenic diversity among Cryptosporidium species may explain the poor agreement among the three tests. Based on our experience, microscopy test with Kinyoun stain is the best and cheapest way to detect Cryptosporidium spp. in faecal samples. With this method, we have found a 5.4% prevalence of Cryptosporidium infection in our area, similar to those reported for other regions of Italy and Europe.
Mesh Headings (Keywords): Adult, Animals, Antigens, Protozoan, Child, Cryptosporidiosis, Cryptosporidium, DNA, Protozoan, Diarrhea, Feces, Humans, Immunoassay, Microscopy, Polymerase Chain Reaction, Staining and Labeling
Check for Full Text / PubMed Unique Identifier (PMID): 16328366
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