PMID- 20826644 OWN - NLM STAT- MEDLINE DCOM- 20110210 LR - 20211020 IS - 1098-660X (Electronic) IS - 0095-1137 (Print) IS - 0095-1137 (Linking) VI - 48 IP - 11 DP - 2010 Nov TI - Real-time detection of influenza a, influenza B, and respiratory syncytial virus a and B in respiratory specimens by use of nanoparticle probes. PG - 3997-4002 LID - 10.1128/JCM.01118-10 [doi] AB - Seasonal epidemics of influenza and respiratory syncytial virus are responsible for significant morbidity and mortality worldwide. Infrequently, novel or reemergent strains of influenza A virus have caused rapid, severe global pandemics resulting in millions of fatalities. The ability to efficiently and accurately detect and differentiate respiratory viruses is paramount for effective treatment, infection control, and epidemiological surveillance. We evaluated the ability of two FDA-cleared nucleic acid-based tests, the semiautomated respiratory virus nucleic acid test (VRNAT) and the fully automated respiratory virus nucleic acid test SP (RVNAT(SP)) (Nanosphere Inc., Northbrook, IL) to detect influenza A virus, influenza B virus, and respiratory syncytial virus A and B (RSV A/B) from clinical nasopharyngeal swab specimens. Detection of viral RNA in both tests is based on nucleic acid amplification followed by hybridization to capture probes immobilized on a glass slide. A novel technology utilizing gold nanoparticle-conjugated probes is utilized to detect the presence of captured target DNA. This microarray-based approach to detection has proven to be more sensitive than the traditional culture/direct fluorescent-antibody assay (DFA) method for detecting RSV and influenza viruses in clinical specimens, including the novel 2009 H1N1 strain. Specifically, we report 98.0% sensitivity and 96.5% specificity for the VRNAT compared to culture/DFA. Further, the VRNAT detected virus in an additional 58% of specimens that were culture negative. These data were confirmed using bidirectional sequencing. Evaluation of the fully automated RVNAT(SP), which is built on the same detection technology as the VRNAT but contains an updated processor enabling complete automation, revealed the two tests to be functionally equivalent. Thus, the RVNAT(SP) is a fully automated sample-to-result test capable of reliable detection of select respiratory viruses directly from clinical specimens in 3.5 h. FAU - Jannetto, Paul J AU - Jannetto PJ AD - Department of Pathology, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA. FAU - Buchan, Blake W AU - Buchan BW FAU - Vaughan, Kimberly A AU - Vaughan KA FAU - Ledford, Joellen S AU - Ledford JS FAU - Anderson, Dennis K AU - Anderson DK FAU - Henley, Donald C AU - Henley DC FAU - Quigley, Neil B AU - Quigley NB FAU - Ledeboer, Nathan A AU - Ledeboer NA LA - eng PT - Comparative Study PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100908 PL - United States TA - J Clin Microbiol JT - Journal of clinical microbiology JID - 7505564 RN - 0 (Oligonucleotide Probes) RN - 0 (RNA, Viral) SB - IM MH - Humans MH - Influenza A virus/*isolation & purification MH - Influenza B virus/*isolation & purification MH - Microarray Analysis/methods MH - *Nanoparticles MH - Nasopharynx/virology MH - *Oligonucleotide Probes MH - RNA, Viral/genetics/isolation & purification MH - Respiratory Syncytial Viruses/*isolation & purification MH - Respiratory Tract Infections/*virology MH - Sensitivity and Specificity MH - Virology/methods MH - Virus Diseases/*diagnosis/virology PMC - PMC3020893 EDAT- 2010/09/10 06:00 MHDA- 2011/02/11 06:00 PMCR- 2011/05/01 CRDT- 2010/09/10 06:00 PHST- 2010/09/10 06:00 [entrez] PHST- 2010/09/10 06:00 [pubmed] PHST- 2011/02/11 06:00 [medline] PHST- 2011/05/01 00:00 [pmc-release] AID - JCM.01118-10 [pii] AID - 1118-10 [pii] AID - 10.1128/JCM.01118-10 [doi] PST - ppublish SO - J Clin Microbiol. 2010 Nov;48(11):3997-4002. doi: 10.1128/JCM.01118-10. Epub 2010 Sep 8.