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Journal of Clinical Microbiology, 11 1997, 2873-2877, Vol 35, No. 11
PS Mitchell, MJ Espy, TF Smith, DR Toal, PN Rys, EF Berbari, DR Osmon and DH Persing
Until recently, the laboratory diagnosis of central nervous system (CNS)
infections with herpes simplex virus (HSV) has been limited by poor
sensitivity and/or specificity. We assessed the diagnostic utility of PCR
for detection of HSV in over 2,100 specimens referred to the Mayo Clinic
from August 1993 to May 1996. DNA extracted from cerebrospinal fluid (CSF)
samples with IsoQuick was amplified by PCR with oligonucleotide primers
directed to the DNA polymerase gene of HSV, yielding a 290-bp amplicon. HSV
DNA was detected in 150 (135 by gel electrophoresis, 15 by Southern
blotting only) of 2,106 (7.1%) specimens. PCR-positive CNS disease occurred
in patients ranging in age from 13 days to 89 years; 59% of the cases
occurred in patients between the ages of 30 and 69, and 21 (14%) of the
patients were infants. Genotype analysis was not routinely performed;
however, amplification of a 335-bp product within the thymidine kinase gene
of HSV revealed 13 positions within a span of 80 nucleotides that
accurately identified the two serotypes of the virus according to 14
reference strains. We conclude that PCR detection of HSV DNA in CSF
specimens should be considered an emerging "gold standard" for the
laboratory diagnosis of CNS infections with this virus.
Copyright © 1997 by the American Society for Microbiology. All rights reserved.
Laboratory diagnosis of central nervous system infections with herpes simplex virus by PCR performed with cerebrospinal fluid specimens [In Process Citation]
Division of Clinical Microbiology, Mayo Clinic and Foundation, Rochester, Minnesota 55905, USA.
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