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Journal of Clinical Microbiology, September 1998, p. 2434-2438, Vol. 36, No. 9
Roche Molecular Systems, Inc., Alameda,
California,1 and
Mt. Zion Medical
Center, University of California, San Francisco,
California2
Received 24 March 1998/Returned for modification 27 April
1998/Accepted 8 June 1998
We have developed the AMPLICOR CMV Test, which is rapid and
sensitive for the detection of cytomegalovirus (CMV) in plasma and
cerebrospinal fluid (CSF) specimens. The test incorporated an internal
control in the reaction mixture to monitor the amplification efficiency
and the presence of inhibitors. The AMPLICOR CMV Test was very specific
in detecting 12 clinical CMV isolates and four laboratory CMV strains
tested. Cross-reactivity with 26 non-CMV pathogens was not observed.
The AMPLICOR CMV Test requires only 50 µl of specimen (plasma or CSF)
for processing. The performance of the AMPLICOR CMV Test was compared
to those of the CMV antigenemia assay and the conventional tube culture
method. Among 112 plasma specimens from 43 human immunodeficiency
virus-infected patients, CMV was detected in 20 (18%) of the specimens
by the AMPLICOR CMV Test, 21 (19%) of the specimens by the CMV
antigenemia assay, and 10 (9%) of the specimens by culture. In CSF
specimens from AIDS patients, CMV was detected in 10 of 58 (17%)
specimens tested by the AMPLICOR CMV Test, 5 of 28 (18%) specimens
tested by the antigen assay, and none of the 25 specimens tested by
culture. While the performance of the AMPLICOR CMV Test in this study
was comparable to that of the CMV antigen assay, processing of
specimens by the AMPLICOR CMV Test was much simpler than that by the
antigen assay; in addition, the antigen assay requires greater than
105 leukocytes from blood or 1 ml of CSF to perform the
assay. Our study suggested that the AMPLICOR CMV Test could provide a
rapid and sensitive assay for the detection of CMV in plasma and CSF specimens.
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
Detection of Cytomegalovirus in Plasma and Cerebrospinal Fluid
Specimens from Human Immunodeficiency Virus-Infected Patients by
the AMPLICOR CMV Test
*
Corresponding author. Mailing address: Roche Molecular
Systems, Inc., 1145 Atlantic Ave., Alameda, CA 94501. Phone: (510) 814-2808. Fax: (510) 522-1285. E-mail:
Shaw-Yi.Kao{at}Roche.com.
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