Volume 85, Issue 2
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



During a cluster-randomized clinical trial for trachoma in Ethiopia, two rounds of adverse event surveillance were performed in a random sample of communities after community-wide mass azithromycin treatment. The prevalence of any reported adverse event ranged from 4.9% to 7.0% in children 1–9 years of age and from 17.0% to 18.7% in persons ≥ 10 years of age. Adverse events appeared to cluster by household and perhaps by village. Mass azithromycin distributions were well tolerated in this setting.


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  • Received : 27 Jan 2011
  • Accepted : 19 May 2011
  • Published online : 01 Aug 2011

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