中文摘要：

弓形虫是一种重要的机会性寄生原虫，可感染人、哺乳动物及鸟类，引起人兽共患弓形虫病。目前，弓形虫感染已经成为一种严重的、全球性的公共卫生安全问题，引起了医学界的广泛关注。肿瘤患者的机体存在免疫功能障碍，对其进行放疗或化疗的过程中，则会进一步的降低肿瘤患者的免疫功能，临床上因抗肿瘤治疗而引起的弓形虫为典型代表的难治愈性寄生虫病的重症化已经愈发明显。肿瘤患者合并弓形虫感染的相关研究逐渐成为弓形虫病研究热点。论文对我国肿瘤患者弓形虫的流行情况、基因分型、传播途径及防治措施做一概述，旨在为有效防控肿瘤患者弓形虫共感染提供参考。

英文摘要：

Toxoplasrna gondii is an important opportunistic parasite, can infect humans, mammals and birds,causing zoonotic toxoplasmosis.T.gondii infection became a global threat to public health seriously and aroused widespread concern in the medical field.During the treatment of tumor patients with radiotherapy or chemotherapy, the immune dysfunction will be further worse, the severe disease caused by T.gondii which is a typical representative of parasitic disease,it is difficult to treat.Some researchers focus on study the T.gondii infection in tumor patients.This paper elaborated effects on tumor patients infecting T.gon- dii from epidemiology, gene typing, transmission, prevention and control. It provided a reference for the prevention and treatment of toxoplasmosis in tumor patients.