蛲虫在世界各地均有发现,但在温带地区更为普遍。在教室和家庭环境中感染容易传播,感染在学龄儿童和他们的父母中最常见。[4]Centers for Disease Control and Prevention. Parasites - enterobiasis (also known as pinworm infection): epidemiology & risk factors. January 2013 [internet publication].https://www.cdc.gov/parasites/pinworm/epi.html 感染率不会因性别、种族或社会经济地位不同而存在差异。[5]Despommier DD, Gwadz RW, Hotez PJ, et al. Parasitic diseases. 4th ed. New York, NY: Apple Trees Productions; 2000. 蛲虫是美国最常见的蠕虫感染,估计感染人数高达 4 千万。[6]Centers for Disease Control and Prevention. Enterobiasis (Enterobius vermicularis). December 2017 [internet publication].http://www.cdc.gov/dpdx/enterobiasis/index.html