WHO世界卫生组织：2023世卫组织全球消除沙眼联盟：消除沙眼进度报告

Trachoma, caused by particular serovars of Chlamydia trachomatis, is the leading infectious cause of blindness. Infection is transmitted by ocular and nasal secretions that are passed from person to person on fingers and fomites (such as hard surfaces and clothing) and by eyeseeking flies (particularly Musca sorbens).1–3 Ophthalmic infection is associated with inflammatory conjunctivitis, known as “active trachoma”. Repeated episodes4 of active trachoma can scar the inner side of the eyelids.