Study on the use of TaqMan Real-time PCR to detect genogroup Ⅰ and Ⅱ norovirus in oysters and patients' stool samples / 中华流行病学杂志
Chinese Journal of Epidemiology
;
(12): 594-597, 2008.
Article
in Chinese
| WPRIM
| ID: wpr-313078
ABSTRACT
Objective To develop a rapid, specific and sensitive diagnostic method for quantification and typing of genogroup Ⅰ and Ⅱ norovirus in oyster shellfish and stool samples from patients who had eaten them. Methods Specific primers and probe, following large scale norovirus genome consensus analysis were designed and subsequently a TaqMan based Real-time PCR assay to detect both GⅠ and GⅡ were established. Results This method showed high specificity for norovirus nucleic acid detection, and no cross-reaction among norovirus GⅠ and GⅡ. The limit on detection of NV genomes was 102 copies/μl. A total of 90 oysters and 37 stool specimens with diarrhea were tested for norovirus by conventional reverse transcriptional PCR (RT-PCR) assay as well as the TaqMan Real-time PCR, respectively. The norovirus detection rate in oysters by TaqMan PCR was significantly higher than that by conventional RT-PCR, but no differences between the two PCR methods were found when detecting the stool samples. Reliability of the Real-time PCR for norovirus detection was further confirmed by DNA sequencing of the positive samples.Conclusion This TaqMan Real-time PCR assay was proved to be a useful method for quantification and typing for norovirus in routine monitoring of both oyster shellfish and clinical samples.This method is recommended to be an effective diagnostic method for outbreak-associated gastroenteritis due to norovirus.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Epidemiology
Year:
2008
Type:
Article
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