Smith H J
Can J Comp Med. 1979 Jul;43(3):341-2.
From 1967--1978 observations were made on the presence of the small equine pinworm, Probstmayria vivipara, in seven experimental ponies. The life cycle of this nematode is unusual in that it is endogenous with development of all stages occurring within the host's digestive tract. Initially, worms were found in the feces of four of seven ponies following treatment with thiabendazole but the infection was later transmitted to all ponies possibly via coprophagy. Still later, based on fecal and postmortem examinations, four of the seven ponies lost their pinworm burdens. At necropsy, the principal sites of infection were observed to be the cecum and right ventral colon. Despite the large number of pinworms present, clinical signs were not observed.
1967年至1978年期间，对7匹实验小马体内小型马蛲虫——胎生普罗布斯特线虫（Probstmayria vivipara）的存在情况进行了观察。这种线虫的生命周期不同寻常，因为它是内源性的，所有阶段的发育都发生在宿主的消化道内。最初，在7匹小马中有4匹在用噻苯达唑治疗后粪便中发现了虫体，但感染后来可能通过食粪癖传播给了所有小马。再后来，根据粪便和尸检检查，7匹小马中有4匹的蛲虫感染消失了。尸检时，观察到主要感染部位是盲肠和右腹侧结肠。尽管存在大量蛲虫，但未观察到临床症状。
