Comparative Evaluation of Multiplex Real-Time PCR Assays for Six Pathogens of Sexually Transmitted Infections.
- Author:
Hae Sun CHUNG
1
;
Miae LEE
Author Information
- Publication Type:Original Article
- Keywords: Multiplex real-time polymerase chain reaction; Sexually transmitted infection
- MeSH: Chlamydia trachomatis; DNA; Korea; Mycoplasma genitalium; Mycoplasma hominis; Neisseria gonorrhoeae; Polymerase Chain Reaction; Real-Time Polymerase Chain Reaction*; Sexually Transmitted Diseases*; Trichomonas vaginalis; Ureaplasma urealyticum
- From:Annals of Clinical Microbiology 2017;20(1):1-6
- CountryRepublic of Korea
- Language:Korean
- Abstract: BACKGROUND: The multiplex real-time PCR assay is a sensitive test for simultaneous detection of various pathogens of sexually transmitted infections (STIs). We evaluated the performance of two multiplex real-time PCR assays for six STI pathogens. METHODS: DNA samples after being used to conduct PCR for STI pathogens were stored below −70℃. Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), Mycoplasma genitalium (MG), Mycoplasma hominis (MH), Ureaplasma urealyticum (UU), and Trichomonas vaginalis (TV) were detected by multiplex real-time PCR with GeneFinder STD I (CT/NG/UU)/II (MG/MH/TV) Multiplex Real-time PCR Kits (Infopia, Korea; GeneFinder assay) and Real-Q CT&NG/MH&TV/MG&UU Kits (BioSewoom, Korea; Real-Q assay). Discrepant results were resolved by another multiplex real-time assay, Anyplex II STI-7 Detection (Seegene, Korea). Any two positive results for the assays were considered true positive. RESULTS: Among 81 samples, the GeneFinder assay detected 63 pathogens from 45 cases (16 CT, 2 NG, 6 MG, 20 MH, 18 UU, and 1 TV) and Real-Q assay detected 66 pathogens from 47 cases (16 CT, 2 NG, 8 MG, 20 MH, 19 UU, and 1 TV). For the results of positive cases and negative cases, the overall concordance rate between the two multiplex real-time assays was 93.8% (Kappa=0.87). For each pathogen, the agreement rates of the two assays ranged from 97.5 to 100% (Kappa>0.8). CONCLUSION: There was no significant difference between the results of GeneFinder assay and Real-Q assay. Both multiplex real-time PCR assays can be useful methods for the detection of STI pathogens in clinical laboratories.
