Thursday, July 30, 2009

Simultaneous detection of viruses and Toxoplasma gondii in cerebrospinal fluid specimens by multiplex PCR-based reverse hybridization

New Microbiol. 2009 Apr;32(2):143-6

Simultaneous detection of viruses and Toxoplasma gondii in cerebrospinal fluid specimens by multiplex polymerase chain reaction-based reverse hybridization assay

Del Prete R, Di Taranto AM, Lipsi MR, Natalicchio MI, Antonetti R, Miragliotta G.

Section of Microbiology, Department of Clinical Medicine, Immunology, Infectious Diseases, University of Bari, Italy.

The lack of rapidity and the low sensitivity and specificity of traditional laboratory methods limits their usefulness in the laboratory diagnosis of viral central nervous system (CNS) infections. This study describes the use of a commercially available multiplex polymerase chain reaction (mPCR)-based reverse hybridization assay (RHA) for the simultaneous detection of the genomes of 8 viruses and Toxoplasma gondii in cerebrospinal fluids (CSF) from 181 patients suspected of having viral meningitis. Twenty-two/181 (12.15%) CSF samples resulted positive by mPCR. Eighteen/22 were positive for 1 viral pathogen, whereas a dual infection was detected in 4/22 samples. Epstein-Barr virus (EBV) was the most commonly detected virus (6/22), followed by herpes simplex virus type-1 (HSV-1) (5/22) and -2 (HSV-2) (4/22). Cytomegalovirus (CMV), human herpesvirus-6 (HHV-6), and Epstein-Barr virus (EBV) were detected in 1 specimen each. Two CSF samples were co-infected by HSV-1/HSV-2, 1 sample by HHV-6/T. gondii, and 1 sample by EBV/EV, respectively. Our data support the usefulness of mPCR as a rapid molecular method for the simultaneous detection of major viral pathogens and T. gondii in aseptic meningitis also to allow the earlier application of specific antiviral therapy.

PMID: 19579690 [PubMed - indexed for MEDLINE]

1 comment:

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