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Eur J Clin Microbiol Infect Dis. 1997 Sep;16(9):685-8.

Evaluation of a new commercial microimmunofluorescence test for detection of antibodies to Chlamydia pneumoniae, Chlamydia trachomatis, and Chlamydia psittaci.

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1
Institut für Medizinische Mikrobiologie und Hygiene, Universitätsklinik Freiburg, Germany.

Abstract

A new commercial test for chlamydial serology, the MRL-Micro-Immunofluorescent Test (MRL; MRL Diagnostics, USA) was compared with the standard microimmunofluorescence test (MIF) using sera from 246 patients. Chlamydia pneumoniae immunoglobulin G (IgG) antibodies were detected in 46.3% (MIF) and 64.2% (MRL) of sera and Chlamydia trachomatis IgG in 23.2% (MIF) and 25.2% (MRL); Chlamydia psittaci IgG antibodies were found with the MRL in 1% of the sera from a general population and in 17.3% of preselected sera with elevated complement fixation titers. Titers were usually higher with the MRL. IgG titers of > or = 1:512 were detected in only 2% of sera using the standard MIF but in 30% using the MRL. In 16 sera from three Chlamydia pneumoniae culture-positive patients, the diagnosis of acute infection could be confirmed serologically in one with the MRL test but in none with the MIF test, indicating a higher sensitivity of the MRL.

PMID:
9352264
[Indexed for MEDLINE]

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