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External quality assessment for molecular detection of Bordetella pertussis in European laboratories.
Vise andre og tillknytning
2005 (engelsk)Inngår i: Journal of Clinical Microbiology, ISSN 0095-1137, E-ISSN 1098-660X, Vol. 43, nr 1, s. 30-35Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Although the PCR for the detection of Bordetella pertussis is routinely performed in diagnostic laboratories, no quality assessment program has so far been described. We report on the results obtained with two external quality assessment proficiency panels sent to European laboratories. The first proficiency panel contained a series of dilutions of three previously characterized B. pertussis clinical isolates and two negative controls. No false-positive results were reported by six laboratories providing seven data sets. The reported limits of detection of the three B. pertussis strains varied between 4 and 4,000, 9 and 9,000, and 3 and 30,000 CFU/ml, respectively. The second proficiency panel, composed of a series of dilutions of reference strains of B. pertussis, B. holmesii, B. hinzii, and B. bronchiseptica, as well as negative controls, was sent to nine laboratories. One laboratory reported a negative result for a sample and reported a B. parapertussis-positive sample to be positive for B. pertussis. By using the B. pertussis-specific target gene pertactin, one laboratory detected B. pertussis with 100% specificity. All other laboratories, which used IS481-based assays, reported positive results for the samples containing B. holmesii and B. bronchiseptica, species that have occasionally been recovered from human respiratory samples. These data show that the choice of the target gene is particularly critical for the species specificity of B. pertussis PCR assays.

sted, utgiver, år, opplag, sider
2005. Vol. 43, nr 1, s. 30-35
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-32351DOI: 10.1128/JCM.43.1.30-35.2005Lokal ID: 18246OAI: oai:DiVA.org:liu-32351DiVA, id: diva2:253173
Tilgjengelig fra: 2009-10-09 Laget: 2009-10-09 Sist oppdatert: 2017-12-13

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Totalt: 43 treff
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