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Journal of Clinical Microbiology, September 2006, p. 3231-3235, Vol. 44, No. 9
0095-1137/06/$08.00+0 doi:10.1128/JCM.00889-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.
Respiratory and Gastroenteritis Viruses Branch,1 Epidemiology Branch, Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia,5 National Institute of Health, Thailand Ministry of Public Health, Nonthaburi, Thailand,2 International Emerging Infections Program, Thai MOPH-U.S. CDC Collaboration, Nonthaburi, Thailand,3 Qpid Laboratory, Sir Albert Sakzewski Virus Research Centre, Royal Children's Hospital and Clinical Medical Virology Centre, University of Queensland, Queensland, Australia4
Received 27 April 2006/ Returned for modification 6 July 2006/ Accepted 17 July 2006
The recently discovered human bocavirus (HBoV) is the first member of the family Parvoviridae, genus Bocavirus, to be potentially associated with human disease. Several studies have identified HBoV in respiratory specimens from children with acute respiratory disease, but the full spectrum of clinical disease and the epidemiology of HBoV infection remain unclear. The availability of rapid and reliable molecular diagnostics would therefore aid future studies of this novel virus. To address this, we developed two sensitive and specific real-time TaqMan PCR assays that target the HBoV NS1 and NP-1 genes. Both assays could reproducibly detect 10 copies of a recombinant DNA plasmid containing a partial region of the HBoV genome, with a dynamic range of 8 log units (101 to 108 copies). Eight blinded clinical specimen extracts positive for HBoV by an independent PCR assay were positive by both real-time assays. Among 1,178 NP swabs collected from hospitalized pneumonia patients in Sa Kaeo Province, Thailand, 53 (4.5%) were reproducibly positive for HBoV by one or both targets. Our data confirm the possible association of HBoV infection with pneumonia and demonstrate the utility of these real-time PCR assays for HBoV detection.
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