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Journal of Clinical Microbiology, December 2001, p. 4357-4361, Vol. 39, No. 12
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.12.4357-4361.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Detection and Differentiation of Human Polyomaviruses JC and BK by LightCycler PCR

David M. Whiley,1,2 Ian M. Mackay,1,2 and Theo P. Sloots1,2,3,4,*

Clinical Virology Research Unit, Sir Albert Sakzewski Virus Research Centre, Royal Children's Hospital and Health Service District,1 Clinical Medical Virology Centre,2 and Department of Pediatrics and Child Health,4 University of Queensland, and Queensland Health Pathology Service, Royal Brisbane Hospital Campus,3 Brisbane, Queensland, Australia

Received 13 February 2001/Returned for modification 7 April 2001/Accepted 21 September 2001

Human polyomaviruses JC and BK may cause several clinical manifestations in immunocompromised hosts, including progressive multifocal leukoencephalopathy and hemorrhagic cystitis. Molecular detection by PCR is recognized as a sensitive and specific method for detecting human polyomaviruses in clinical samples. In this study, a real-time PCR assay using the LightCycler platform was evaluated and compared to an "in-house" PCR assay using a conventional detection method. A total of 122 urine specimens were tested, and human polyomavirus was detected in 49 specimens (40%) by both conventional PCR and LightCycler PCR. The remaining 73 specimens (60%) were found negative by both assays. For 46 of the 49 positive specimens, LightCycler PCR and conventional PCR identified the same polyomavirus type. These samples included 30 samples with JC virus (JCV), 14 samples with BK virus (BKV), and 2 samples in which both viruses were detected. In the remaining three samples, both JCV and BKV were detected by the conventional assay, but only JCV was detected by the LightCycler assay. The results of this study show that the LightCycler PCR assay displays sensitivity and specificity similar to those of a conventional PCR assay. These data, combined with its rapid turnaround time for results and decreased hands-on time, make the LightCycler PCR assay highly suitable for the rapid detection and differentiation of JCV and BKV in the clinical laboratory.

* Corresponding author. Mailing address: Sir Albert Sakzewski Virus Research Centre, Royal Children's Hospital, Herston Rd., Herston, Queensland, Australia 4029. Phone: 61-7-3636 8833. Fax: 61-7-36361401. E-mail: t.sloots{at}mailbox.uq.edu.au.

Journal of Clinical Microbiology, December 2001, p. 4357-4361, Vol. 39, No. 12
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.12.4357-4361.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


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