Comparison between Abbott m2000 RealTime and Alinity m STI systems for detection of Chlamydia trachomatis, Neisseria gonorrhoeae, and Mycoplasma genitalium

Eur J Clin Microbiol Infect Dis. 2021 Oct;40(10):2217-2220. doi: 10.1007/s10096-020-04135-9. Epub 2021 Mar 15.

Abstract

The new Abbott Alinity m STI Assay was compared with Abbott m2000 RealTime PCR. For Chlamydia trachomatis, 26 (7.5%) of 347 samples were positive in the Alinity assay and 24 (6.9%) in the m2000 assay. Corresponding figures for Neisseria gonorrhoeae were 23 (6.6%) and 17 (4.9%). For Mycoplasma genitalium, 22 (7.9%) of 279 samples were positive in the Alinity assay and 18 (6.5%) in the m2000 assay, for which DNA extraction was performed on an m2000sp instrument combined with in-house real-time PCR. The Alinity assay has at least the same sensitivity as the m2000 assay. The specificity was evaluated by discrepancy analysis.

Keywords: Chlamydia trachomatis; Mycoplasma genitalium; Neisseria gonorrhoeae; Nucleic acid amplification tests.

Publication types

  • Comparative Study

MeSH terms

  • Automation / instrumentation
  • Automation / methods
  • Chlamydia Infections / diagnosis
  • Chlamydia Infections / microbiology*
  • Chlamydia trachomatis / genetics
  • Chlamydia trachomatis / isolation & purification*
  • DNA, Bacterial / genetics
  • DNA, Bacterial / isolation & purification
  • Gonorrhea / diagnosis
  • Gonorrhea / microbiology*
  • Humans
  • Mycoplasma Infections / diagnosis
  • Mycoplasma Infections / microbiology*
  • Mycoplasma genitalium / genetics
  • Mycoplasma genitalium / isolation & purification*
  • Neisseria gonorrhoeae / genetics
  • Neisseria gonorrhoeae / isolation & purification*
  • Real-Time Polymerase Chain Reaction / instrumentation
  • Real-Time Polymerase Chain Reaction / methods*

Substances

  • DNA, Bacterial