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  • Title: Improvement of cervical Chlamydia detection in asymptomatic family planning attendees by using Amplicor Chlamydia trachomatis assay.
    Author: Chout R, Vaton S, Quist D, Bucher R, Leguyader-Desprees P, Sayada C.
    Journal: Cell Mol Biol (Noisy-le-grand); 1995 Jul; 41(5):731-6. PubMed ID: 7580853.
    Abstract:
    We evaluated the Amplicor C. trachomatis PCR assay (Roche Molecular Systems, N.J.) for the diagnosis of cervical infection in asymptomatic women attending a family planning clinic, aged between 18 and 25 years. Culture onto McCoy cells with fluorescent monoclonal staining was the reference system. Cervical specimens from 485 women were tested. The prevalence of C. trachomatis was 10.5% by culture and 11% by Amplicor. No specimen was positive by culture and negative by PCR. Three PCR-positive, culture-negative specimens were positive by MOMP-PCR and a second plasmid-based PCR. The resolved sensitivity of PCR and culture were 100% and 94.5%, respectively. Specificities for both were 100%, positive and negative predictive values for culture were 100% and 99.3%. Total test efficiency was 99.4%. The Amplicor C. trachomatis assay gave very clear results, quite above or below the cut-off value, and showed high sensitivity and specificity, improved ease of handling and represented a good alternative to culture for large scale diagnosis of asymptomatic C. trachomatis infection.
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