Journal article
Inapparent ocular infection by Chlamydia trachomatis in experimental and human trachoma
Current eye research, v 11(3), pp 279-283
1992
PMID: 1375138
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
There is substantial indirect evidence which suggests that Chlamydia trachomatis can generate inapparent, persistent infections in human. To confirm this directly, we examined ocular chlamydial infection in both the cynomolgus monkey model of trachoma and in patient samples from a trachoma-endemic area. In monkeys, ocular infection was studied over time using direct immunofluorescence cytology (DFA) and a molecular hybridization screening system which targets chlamydial ribosomal RNA. In eleven animals infected once with B serovar, DFA and probe screening of parallel conjunctival swabs gave congruent results through day 42 post-infection. Thereafter, DFA showed clearing of chlamydia and was negative by day 70, as in previous studies. In contrast, hybridization analysis indicated a continuing presence of chlamydial RNA in all samples from all animals through the end of the experiment at day 84 post-infection. Similarly, analysis of swabs from trachoma patients showed that a number of DFA-negative samples gave clear positive signal for chlamydial RNA. Taken together these data indicate that ocular chlamydial infection persists for longer periods than previously thought, judging solely on the basis of DFA, and they support the idea that inapparent ocular chlamydial infection occurs in vivo.
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Details
- Title
- Inapparent ocular infection by Chlamydia trachomatis in experimental and human trachoma
- Creators
- Alan P. Hudson - Research Service, Department of Veterans Affairs Medical Center, PA 19104.Catherine M. McEntee - Drexel UniversityMark Reacher - Johns Hopkins MedicineJudith A. Whittum-Hudson - Johns Hopkins MedicineHugh R. Taylor - Johns Hopkins MedicineHeidi R Taylor - Pediatrics
- Publication Details
- Current eye research, v 11(3), pp 279-283
- Publisher
- Informa UK Ltd
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Pediatrics
- Web of Science ID
- WOS:A1992HQ14800011
- Scopus ID
- 2-s2.0-0026563842
- Other Identifier
- 991019184017004721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Ophthalmology