Prior exposure to azithromycin and azithromycin resistance among persons diagnosed with Neisseria gonorrhoeae infection at a Sexual Health Clinic 2012-2019

alexandrossfakianakis shared this article with you from Inoreader Prior exposure to azithromycin and azithromycin resistance among persons diagnosed with Neisseria gonorrhoeae infection at a Sexual Health Clinic 2012-2019 via Clinical Infectious Diseases Advance Access Abstract Background There is conflicting evidence on whether prior azithromycin (AZM) exposure is associated with reduced susceptibility to AZM (AZMRS) among persons infected with Neisseria gonorrhoeae (NG). Methods The study population included Public Health-Seattle & King County Sexual Health Clinic (SHC) patients with culture-positive NG infection at ≥1 anatomic site whose isolates were tested for AZM s usceptibility 2012-2019. We used multivariate logistic regression to examine the association of time since last AZM prescription from the SHC in ≤12 months with subsequent diagnosis with AZMRS NG (minimum inhibitory concentration [MIC] ≥2.0 µg/ml) and used linear regression to assess the association between number of AZM prescriptions in ≤12 months and AZM MIC level, controlling for demographic, behavioral, and clinical characteristics. Results A total of 2,155 unique patients had 2,828 incident NG infections, 156 (6%) of which were caused by AZMRS NG. AZMRS NG was strongly associated with receipt of AZM from the SHC in the prior 29 days (adjusted odds ratio [aOR] 6.76, 95% CI 1.76-25.90), but not with receipt of AZM in the prior 30-365 days. Log AZM MIC level was not associated with the number of AZM prescriptions within ≤12 months (Adjusted correlation [aCor] 0.0004, 95% CI -0.04, 0.037), but was associated with number of prescrip tions with <30 days (adjusted coefficient [aCoef] 0.56, 95% CI 0.13-0.98) Conclusion Recent individual-level AZM treatment is associated with subsequent AZMRS gonococcal infections. The long half-life and persistence of subtherapeutic levels of AZM may result in selection of resistant NG strains in persons with recent AZM use. View on Web

Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.