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Previous Volume 351:2004-2007 November 4, 2004 Number 19 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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Despite long-standing efforts to control it, trachoma remains the leading cause of preventable blindness in the world. According to the most recent estimates, some 84 million people have active trachoma (the infectious stage) in 55 countries in which the disease is endemic (Figure 1), and 7.6 million people have trachomatous trichiasis, the blinding stage of this infectious disease. Trachoma is a chronic keratoconjunctivitis caused by repeated reinfection with the ocular serotypes A, B, Ba, and C of Chlamydia trachomatis, an obligate intracellular bacterium. The infection causes a mucopurulent conjunctivitis that is generally self-healing without sequelae.

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Source Information

From Prevention of Blindness and Deafness, World Health Organization, Geneva.

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