FN Archimer Export Format PT J TI Development of a reverse transcription-PCR-DNA enzyme immunoassay for detection of "Norwalk-like" viruses and hepatitis A virus in stool and shellfish BT AF SCHWAB, Kellogg NEILL, Frederick LE GUYADER, Soizick ESTES, Mary ATMAR, Robert AS 1:;2:;3:;4:;5:; FF 1:;2:;3:PDG-DEL-MP-MIC;4:;5:; C1 Baylor Coll Med, Div Mol Virol, Dept Mol Virol & Microbiol, Houston, TX 77030 USA. Baylor Coll Med, Dept Med, Houston, TX 77030 USA. IFREMER, Microbiol Lab, F-44311 Nantes, France. C2 BAYLOR COLL MED, USA BAYLOR COLL MED, USA IFREMER, FRANCE SI NANTES SE PDG-DEL-MP-MIC IN WOS Ifremer jusqu'en 2018 copubli-int-hors-europe IF 3.688 TC 50 UR https://archimer.ifremer.fr/doc/2001/publication-1267.pdf LA English DT Article DE ;Bivalvia;Immuoessay;DNA enzyme;Reverse transcription PCR;Detection method;Enteric virus AB Outbreaks of food- and waterborne gastroenteritis are being increasingly reported throughout the world. The analysis of environmental samples by ne,ver diagnostic techniques such as reverse transcription-PCR (RT-PCR) amplification of nucleic acid has begun to identify human enteric viruses (predominantly "Norwalklike" viruses [NLVs]) as the cause of many of these outbreaks. To streamline NLV detection from environmental samples such as shellfish, we have developed an RT-PCR-oligoprobe amplification and detection method using several new procedures that enable confirmed RT-PCR amplification and product detection in 1 day. The new steps include replacing reverse transcriptase and Tag polymerase with rTth polymerase, a heat-stable enzyme that functions as both a reverse transcriptase and DNA polymerase, in a single-tube, single-buffer, elevated temperature reaction. An internal standard Norwalk virus (NV) RNA control is added to each RT-PCR to identify sample inhibition, and thermolabile uracil N-glycosylase is incorporated into the reaction to prevent PCR product carryover contamination. Finally, RT-PCR-generated amplicons are detected in microtiter wells using virus-specific biotinylated oligoprobes in an enzyme-linked immunosorbent assay-based format. The DNA en;cyme immunoassay is based on the capture of PCR product by biotinylated probes fixed onto individual streptavidin-coated wells. Using this method, low levels of NV were detected in stool and both NLV and hepatitis A virus were detected in bivalve mollusks following bioaccumulation. The method also successfully detected NLV in oysters implicated in an outbreak of NLV gastroenteritis. This method dramatically decreases the time needed for analysis and is amenable to automation. PY 2001 PD FEB SO Applied and environmental microbiology SN 0099-2240 PU American society for microbiology VL 67 IS 2 UT 000166844600033 BP 742 EP 749 DI 10.1128/AEM.67.2.742-749.2001 ID 1267 ER EF