弓形虫感染遍及世界，许多国家的平均感染率在25％～50％，我国人群感染率在4％～9％左右，”’。由于临床对弓形虫病的认识及诊断手段不足，常致大量病例误诊、漏诊。本院基因室印993年4月开展弓形虫病的基因诊断，在3个月中，仅儿科就检出共收治了儿童脑弓形虫病20例，报告如 Toxoplasma infection throughout the world, the average infection rate in many countries in 25% to 50%, the rate of population infection in China is about 4% to 9%, “” Because of clinical knowledge of toxoplasmosis and the lack of diagnostic tools, often caused by a large number Case misdiagnosis, missed diagnosis .Gene room gene room in India in April 993 to carry out the genetic diagnosis of toxoplasmosis, in 3 months, only pediatric detected a total of 20 cases of children treated with toxoplasmosis, reported as