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J Clin Microbiol. 1998 Sep;36(9):2772-4.

Detection of Helicobacter pylori in stool specimens by PCR and antigen enzyme immunoassay.

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1
Department of Clinical Microbiology, Hygiene Institute of the University of Vienna, Vienna, Austria. Athanasios.Makristathis@akh-wien.ac.at

Abstract

A highly sensitive seminested PCR assay to detect Helicobacter pylori DNA in feces was developed. PCR with stool specimens and a novel antigen enzyme immunoassay (EIA) for H. pylori detection in feces were evaluated as diagnostic tools and in follow-up with samples from 63 infected and 37 noninfected persons. Infected individuals received eradication therapy followed by endoscopic follow-up 35 days after the start of treatment. At that time, a second stool specimen was obtained from 55 of these patients. Before eradication, the sensitivity of PCR was 93.7% and that of EIA 88.9%. Specificities were 100 and 94.6%, respectively. Of the 55 follow-up specimens, 41 originated from patients from whom H. pylori had been eradicated. Of these, 21 were still positive by PCR and 13 were positive by EIA, indicating that 1 month may be too short a period for follow-up evaluation of stool specimens by these tests.

PMID:
9705436
PMCID:
PMC105206
[Indexed for MEDLINE]
Free PMC Article
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