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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
immunology and microbiology
Clinical activity and polymerase chain reaction evidence of chlamydial infection after repeated mass antibiotic treatments for trachoma
American Journal of Tropical Medicine and Hygiene, Volume 82, No. 3, Year 2010
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Description
It is unclear how the prevalence of clinically active trachoma correlates with the prevalence of ocular chlamydial infection at the community level. In 24 villages from a cluster-randomized clinical trial of mass azithromycin distributions in Ethiopia, the correlation between the prevalence of clinical activity (on examination) and chlamydial infection (by polymerase chain reaction) was moderately strong before mass antibiotic treatments (Pearson's correlation coefficient r = 0.75,95% confidence interval [CI] = 0.52-0.87), but decreased at each time point during four biannual treatments (at 24 months, r = 0.15,95% CI = -0.14-0.41). One year after the final treatment, the correlation coefficient had increased, but not to the pre-treatment level (r = 0.55,95% CI = 0.30-0.73). In a region with hyperendemic trachoma, conjunctival examination was a useful indicator of the prevalence of chlamydial infection before treatments, less useful during mass treatments, but regained utility by one year after treatments had stopped. Copyright © 2010 by The American Society of Tropical Medicine and Hygiene.
Authors & Co-Authors
Keenan, Jeremy David
United States, San Francisco
University of California, San Francisco
Lakew, Takele
Ethiopia, Addis Ababa
Orbis International, Addis Ababa
Alemayehu, Wondu
Ethiopia, Addis Ababa
Orbis International, Addis Ababa
Melese, Muluken
Ethiopia, Addis Ababa
Orbis International, Addis Ababa
Porco, Travis C.
United States, San Francisco
University of California, San Francisco
Yi, Elizabeth H.
United States, San Francisco
University of California, San Francisco
House, Jenafir I.
United States, San Francisco
University of California, San Francisco
Zhou, Zhaoxia
United States, San Francisco
University of California, San Francisco
Ray, Kathryn J.
United States, San Francisco
University of California, San Francisco
Acharya, Nisha R.
United States, San Francisco
University of California, San Francisco
Whitcher, John P.
United States, San Francisco
University of California, San Francisco
Gaynor, Bruce D.
United States, San Francisco
University of California, San Francisco
Lietman, Thomas M.
United States, San Francisco
University of California, San Francisco
Statistics
Citations: 47
Authors: 13
Affiliations: 2
Identifiers
Doi:
10.4269/ajtmh.2010.09-0315
ISSN:
00029637
Research Areas
Health System And Policy
Study Design
Randomised Control Trial
Cross Sectional Study
Study Locations
Ethiopia