弓形体病(Toxoplasmosis)是由弓形体(Toxop-lasma gondii)球虫引起的一种人畜共患传染病,全世界广泛存在,人类的感染率一般在10～70%左右。它可引起人类多种先天畸形、智力发育障碍、先天视力障碍、发育缺陷等。近年报告不少恶性肿瘤,接受免疫抑制剂患者、老年患者常因全身性急性弓形体病而死亡,也是人类的一个条件性病原体或重要的并发症。本病临床表现比较复杂,没有实验室特异检验为依据时 Toxoplasmosis is a zoonosis caused by the Toxoplasma gondii coccidiosis, which is widespread in the world. The infection rate of human beings is generally about 10 to 70%. It can cause a variety of human congenital malformations, mental retardation, congenital visual impairment, developmental defects. In recent years, many malignant tumors are reported in patients receiving immunosuppressive drugs. Elderly patients often die of systemic acute toxoplasmosis and are also a conditional pathogen or an important complication of human beings. The clinical manifestations of the disease is more complex, there is no laboratory-based test-based