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Journal of Clinical Microbiology, April 2001, p. 1661-1664, Vol. 39, No. 4
Department of Microbiology, Medical School, National
University of Athens, Athens,1
Department of Internal Medicine, Medical School, University
of Ioannina, Ioannina,2 and Laboratory
of Clinical Microbiology, Hospital of Infectious Diseases,
Thessaloniki,3 Greece
Received 5 September 2000/Returned for modification 5 November
2000/Accepted 20 January 2001
Human brucellosis poses a significant public health problem in many
developing countries and requires fast and accurate diagnosis. A PCR
assay amplifying part of the 31-kDa Brucella abortus
antigenic protein gene sequence was developed and applied to
whole-blood and serum samples from 31 brucellosis patients and 45 healthy individuals. All patients except one had detectable
Brucella DNA in either whole blood or serum (combined
sensitivity, 97%), but the assay sensitivity was higher with serum
samples (94%) than with whole-blood samples (61%). The assay
specificity was excellent (100%). A confirmatory PCR assay targeting
another Brucella gene region (omp-2) was
also developed but lacked sensitivity. Serum is the optimal specimen
for the diagnosis of brucellosis by PCR, a choice that leads to assay
simplification and shortens turnaround time.
0095-1137/01/$04.00+0 DOI: 10.1128/JCM.39.4.1661-1664.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Serum Is the Preferred Clinical Specimen for
Diagnosis of Human Brucellosis by PCR
*
Corresponding author. Mailing address: Department of
Microbiology, Medical School, University of Athens, 75 Mikras Assias St., 11527 Goudi, Athens, Greece. Phone: (30-1) 778-5638. Fax: (30-1)
770-9180. E-mail: lzerva{at}cc.uoa.gr.
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