Decreased Susceptibility to Azithromycin in Clinical Shigella Isolates Associated with HIV and Sexually Transmitted Bacterial Diseases, Minnesota, USA, 2012-2015

Emerg Infect Dis. 2020 Apr;26(4):667-674. doi: 10.3201/eid2604.191031.

Abstract

Shigellosis outbreaks caused by Shigella with decreased susceptibility to azithromycin (DSA-Shigella) among men who have sex with men (MSM) have been reported worldwide. We describe sexual health indicators and antimicrobial drug resistance for shigellosis cases in Minnesota, USA. We analyzed a sample of isolates received during 2012-2015 and cross-referenced cases with the Minnesota Department of Health Sexually Transmitted Disease Database to ascertain patients' HIV status and recent chlamydia, gonorrhea, and syphilis infections. Of 691 Shigella isolates, 46 (7%) were DSA-Shigella; 91% of DSA-Shigella patients were men, of whom 60% were living with HIV. Among men, those with DSA-Shigella infection had greater odds of living with HIV, identifying as MSM, or having a recent diagnosis of a sexually transmitted disease. DSA-Shigella was associated with MSM, HIV infection, and recent sexually transmitted disease. To decrease spread of DSA-Shigella, interventions targeted at communities at high risk are needed.

Keywords: DSA; HIV; MSM; Minnesota; STDs; Shigella; United States; antimicrobial resistance; azithromycin; bacteria; decreased susceptibility to azithromycin; enteric infections; infections; men who have sex with men; sexually transmitted diseases; sexually transmitted infections (STIs); shigellosis.

MeSH terms

  • Anti-Bacterial Agents / pharmacology
  • Anti-Bacterial Agents / therapeutic use
  • Azithromycin / pharmacology
  • Drug Resistance, Bacterial
  • Dysentery, Bacillary* / drug therapy
  • Dysentery, Bacillary* / epidemiology
  • Female
  • Gonorrhea* / drug therapy
  • Gonorrhea* / epidemiology
  • HIV Infections* / drug therapy
  • HIV Infections* / epidemiology
  • Homosexuality, Male
  • Humans
  • Male
  • Minnesota / epidemiology
  • Sexual and Gender Minorities*
  • Sexually Transmitted Diseases* / drug therapy
  • Sexually Transmitted Diseases* / epidemiology
  • Shigella*

Substances

  • Anti-Bacterial Agents
  • Azithromycin