Markedly decreasing azithromycin susceptibility of Neisseria gonorrhoeae, Germany, 2014 to 2021

Euro Surveill. 2021 Aug;26(31):2100616. doi: 10.2807/1560-7917.ES.2021.26.31.2100616.

Abstract

We monitored antimicrobial susceptibility developments of Neisseria gonorrhoeae in Germany from January 2014 to May 2021. The proportion of isolates with azithromycin minimum inhibitory concentrations above the epidemiological cut-off increased substantially, from 1.3% in 2014 to 12.2% in 2020. Preliminary data from 2021 showed a further rise (January to May: 20.7%). Therefore, azithromycin as part of the recommended dual therapy in Germany for non-adherent patients is challenged. Antimicrobial susceptibility testing in clinical practice is crucial and continuous susceptibility surveillance indispensable.

Keywords: AMR; MIC; Neisseria gonorrhoeae; antimicrobial resistance; azithromycin; minimum inhibitory concentration.

MeSH terms

  • Anti-Bacterial Agents / pharmacology
  • Anti-Bacterial Agents / therapeutic use
  • Azithromycin / pharmacology
  • Ceftriaxone / pharmacology
  • Drug Resistance, Bacterial
  • Germany / epidemiology
  • Gonorrhea* / drug therapy
  • Gonorrhea* / epidemiology
  • Humans
  • Microbial Sensitivity Tests
  • Neisseria gonorrhoeae* / genetics

Substances

  • Anti-Bacterial Agents
  • Ceftriaxone
  • Azithromycin