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Prevalence of trachoma in the Kayes region of Mali eight years after stopping mass drug administration. | LitMetric

AI Article Synopsis

  • * A follow-up survey in 2015 assessed progress by examining over 11,000 people across four health districts, finding trachomatous inflammation (TF) and trachomatous trichiasis (TT) prevalence significantly decreased.
  • * By 2015, all districts achieved the TF elimination threshold of <5%, and three out of four reached the TT elimination threshold of <0.1%, indicating successful interventions in reducing trachoma rates.

Article Abstract

Background: In 2009, three years after stopping mass treatment with azithromycin, a trachoma impact survey in four health districts in the Kayes region of Mali found a prevalence of trachomatous inflammation-follicular (TF) among children aged 1 to 9 years of >5% and a trachomatous trichiasis (TT) prevalence within the general population (≥1-year-old) of <1%. As a result, the government's national trachoma program expanded trichiasis surgery and related activities required to achieve trachoma elimination.

Methodology/principal Findings: In 2015, to assess progress towards elimination, a follow-up impact survey was conducted in the Kayes, Kéniéba, Nioro and Yélimané health districts. The survey used district level two-stage cluster random sampling methodology with 20 clusters of 30 households in each evaluation unit. Subjects were eligible for examination if they were ≥1 year. TF and TT cases were identified and confirmed by experienced ophthalmologists. In total 14,159 people were enumerated and 11,620 (82%) were examined. TF prevalence (95% confidence interval (CI)) was 0.5% (0.3-1%) in Kayes, 0.8% (0.4-1.7%) in Kéniéba, 0.2% (0-0.9%) in Nioro and 0.3% (0.1-1%) in Yélimané. TT prevalence (95% CI) was 0.04% (0-0.25%) in Kayes, 0.29% (0.11-0.6%) in Kéniéba, 0.04% (0-0.25%) in Nioro and 0.07% (0-0.27%) in Yélimané.

Conclusions/significance: Eight years after stopping MDA and intensifying trichiasis surgery outreach campaigns, all four districts reached the TF elimination threshold of <5% and three of four districts reached the TT elimination threshold of <0.1%.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5825163PMC
http://dx.doi.org/10.1371/journal.pntd.0006289DOI Listing

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