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  • Title: Surveillance and Azithromycin Treatment for Newcomers and Travelers Evaluation (ASANTE) Trial: Design and Baseline Characteristics.
    Author: Ervin AM, Mkocha H, Munoz B, Dreger K, Dize L, Gaydos C, Quinn TC, West SK.
    Journal: Ophthalmic Epidemiol; 2016 Dec; 23(6):347-353. PubMed ID: 27820670.
    Abstract:
    PURPOSE: Immigrants and travelers may be sources of re-emergent infection in trachoma-endemic communities close to trachoma elimination. The primary objective of the A Surveillance and Azithromycin Treatment for Newcomers and Travelers Evaluation (ASANTE) trial was to determine whether a newcomer and traveler surveillance and treatment program in addition to annual mass drug administration (MDA) would reduce Chlamydia trachomatis infection when compared to MDA alone. METHODS: ASANTE was a randomized controlled trial in 52 communities in Kongwa, Tanzania. In 26 intervention communities, monitors treated everyone in new households, in-coming children and guardians in existing households, and all persons in households who had traveled between annual MDA events. A total of 26 usual practice communities received MDA only. Surveys of 100 1-9-year-olds from each community were conducted at baseline and every 6 months up to 2 years to assess clinical trachoma and C. trachomatis infection. Data on demographics and environmental factors were also collected. RESULTS: Mean prevalences of trachomatous inflammation - follicular (TF) and C. trachomatis were equivalent between the two arms (5.2% and 3.7% in intervention, and 4.9% and 3.6% in usual practice communities, respectively). Of 318 children with TF, 36.5% tested positive for C. trachomatis. TF prevalence was higher among households without a bicycle (p = 0.03) and lower with increasing child's age (p < 0.001). Infection prevalence was higher among households >30 minutes from water (p = 0.015). TF and infection prevalence decreased with increasing years of education (p = 0.004 and p = 0.002, respectively). CONCLUSION: The ASANTE trial will inform guidance on the surveillance and treatment of persons traveling or newly arriving to communities hypo-endemic for trachoma.
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