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PLoS Negl Trop Dis. 2009 Oct 27;3(10):e460. doi: 10.1371/journal.pntd.0000460.

The global burden of trachoma: a review.

Author information

  • 1Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom. matthew.burton@lshtm.ac.uk

Abstract

Trachoma is the commonest infectious cause of blindness worldwide. Recurrent infection of the ocular surface by Chlamydia trachomatis, the causative agent, leads to inturning of the eyelashes (trichiasis) and blinding corneal opacification. Trachoma is endemic in more than 50 countries. It is currently estimated that there are about 1.3 million people blind from the disease and a further 8.2 million have trichiasis. Several estimates for the burden of disease from trachoma have been made, giving quite variable results. The variation is partly because different prevalence data have been used and partly because different sequelae have been included. The most recent estimate from the WHO placed it at around 1.3 million Disability-Adjusted Life Years (DALYs). A key issue in producing a reliable estimate of the global burden of trachoma is the limited amount of reliable survey data from endemic regions.

PMID:
19859534
[PubMed - indexed for MEDLINE]
PMCID:
PMC2761540
Free PMC Article
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