Detection of enteroviruses in faeces by polymerase chain reaction
- PMID: 1324520
- DOI: 10.3109/00365549209061331
Detection of enteroviruses in faeces by polymerase chain reaction
Abstract
A polymerase chain reaction (PCR) technique for the detection of human enteroviruses in stool specimens was developed. The test was based on the synthesis of cDNA, followed by PCR and slot blot hybridization. The primers used were selected from a highly conserved sequence in the 5'non-coding region of the enteroviral genome. By this method 27 different enterovirus serotypes (15 echo, 6 coxsackie A, 4 coxsackie B, poliovirus type 2 and enterovirus 71) from 89 patients could be detected. Using positive virus culture as reference, the sensitivity of PCR was 69% after 30 cycles of amplification, 91% using 30 + 10 cycles and 100% following 2 rounds of amplification with ensuing hybridization. None of 23 stool samples from healthy individuals or patients with meningitis of proven non-enteroviral etiology were positive by the PCR. By contrast, 13/26 culture-negative, randomly chosen stool samples from patients with suspected enteroviral disease were positive by the test. These findings demonstrate a high sensitivity and an apparently high specificity of PCR for detection of enteroviruses in stool samples. Therefore, the methodology may be useful in the laboratory diagnosis of enterovirus infections.
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