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沙眼是常见病,往往不为人们重视,以致在全世界广泛流行。从有关资料看,估计目前全世界约有5亿人患沙眼,百万人因沙眼而失明。沙眼依原体目前已能分离出15个免疫亚型,其中的A、B、Ba、C可致沙眼流行。年幼儿童初染沙眼时多为急性发病,除眼部痒感、干涩外,主要表现为急性泡疹性结膜炎,耳前淋巴结肿大,极易误诊为病毒性急性滤泡性结膜炎。但病毒性急性滤泡性结膜炎多表现为急性咽结膜炎,咽部极度充血、高热,发病急,多见于夏季。初染沙眼虽然急性泡疹性结膜炎来得很急,但不发热,所以如结膜炎症状持续3周以上时,即应考虑到急性
Trachoma is a common disease and is often not valued by people and is therefore widely prevalent throughout the world. Judging from the relevant information, it is estimated that about 500 million people in the world suffer from trachoma and millions of people are blind due to trachoma. Trachoma according to the body has been able to isolate 15 immune subtypes, of which A, B, Ba, C can cause trachoma epidemic. Early childhood trachoma are mostly acute onset, except for itchy eyes, dry, the main manifestations of acute conjunctivitis, anterior ear lymph nodes, easily misdiagnosed as viral acute follicular conjunctivitis. However, viral acute follicular conjunctivitis and more performance for acute pharyngoconjunctivitis, throat hyperemia, fever, acute onset, more common in the summer. Initial infection trachoma Although acute conjunctivitis is very acute, but not fever, so if conjunctivitis symptoms last 3 weeks or more, that should take into account the acute