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Infección por clamidia durante la monitorización de tracoma: ¿son los niños más difíciles de localizar aquellos con más probabilidad de estar infectados?
Author(s) -
Keenan Jeremy D.,
Moncada J.,
Gebre T.,
Ayele B.,
Chen M. C.,
Yu S. N.,
Emerson P. M.,
Stoller N. E.,
McCulloch C. E.,
Gaynor B. D.,
Schachter J.
Publication year - 2012
Publication title -
tropical medicine and international health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.056
H-Index - 114
eISSN - 1365-3156
pISSN - 1360-2276
DOI - 10.1111/j.1365-3156.2011.02919.x
Subject(s) - trachoma , azithromycin , chlamydia , chlamydial infection , medicine , population , antibiotics , chlamydia trachomatis , pediatrics , demography , immunology , biology , environmental health , pathology , microbiology and biotechnology , sociology
Objectives During mass antibiotic distributions for trachoma, certain individuals are difficult to locate and go untreated. These untreated individuals may serve as a source of community reinfection. The importance of this difficult‐to‐locate, untreated population is unclear. We sought to determine whether individuals who are difficult to locate were more likely to be infected with ocular chlamydia than those who were easier to locate. Methods We monitored 12 Ethiopian communities 1 year after a third annual mass azithromycin treatment for trachoma. Conjunctival swabbing for chlamydial RNA was performed in a random sample of children from each community. If insufficient numbers of children were enrolled on the first monitoring day, we returned on subsequent days. Results Of the 12 communities, 10 required more than one monitoring day. On average, 16.1% (95% CI 7.9–30.0) of children were enrolled after the initial day. Evidence of chlamydia was found in 7.1% (95% CI 2.7–17.4) of 0‐ to 9‐year‐old children. No ocular swabs collected after the initial day were positive for chlamydial RNA. Children examined after the initial monitoring day were significantly less likely to have ocular chlamydial infection than children seen on the initial day; Mantel–Haenszel common OR = 0 (95% CI 0–0.77). Conclusions In a setting of repeated annual mass azithromycin treatments, after approximately 80% of individuals have been located in a community, extra efforts to find absent individuals may not yield significantly more cases of ocular chlamydia.