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Journal of Clinical Microbiology, January 1998, p. 77-80, Vol. 36, No. 1
Department of Veterinary Microbiology,
Faculty of Agriculture, Gifu University, 1-1 Yanagido, Gifu 501-11, Gifu, Japan
Received 2 June 1997/Returned for modification 26 August
1997/Accepted 10 October 1997
A nested PCR method was developed for the detection of
Coxiella burnetii in human serum samples. Two pairs of
oligonucleotide primers were designed to amplify a 438-bp fragment of
the com1 gene encoding a 27-kDa outer membrane protein of
C. burnetii. The primers amplified the predicted fragments
of 21 various strains of C. burnetii but did not react with
DNA samples from other microorganisms. The 438-bp amplification
products could be digested with restriction enzymes SspI
and SalI. The utility of the nested PCR was evaluated by
testing human serum samples. The com1 gene fragment was
amplified from 135 (87%) of 155 indirect immunofluorescence test
(IF)-positive serum samples and from 11 (11%) of 100 IF-negative serum
samples. The nested PCR with primers targeted to the com1
gene appeared to be a sensitive, specific, and useful method for the
detection of C. burnetii in serum samples.
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
Clinical Evaluation of a New PCR Assay for
Detection of Coxiella burnetii in Human Serum
Samples
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Corresponding author. Mailing address: Department of
Veterinary Microbiology, Faculty of Agriculture, Gifu University, 1-1 Yanagido, Gifu 501-11, Gifu, Japan. Phone: 81-58-293-2945. Fax: 81-58-293-2945. E-mail: khirai{at}cc.gifu-u.ac.jp.
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