Howard R J
Parasitology. 1976 Jun;72(3):317-23. doi: 10.1017/s0031182000049519.
Groups of mice were infected with 1, 5 or 10 cysticercoids of Hymenolepis microstoma. Infections were terminated with the anthelmintic 'Zanil' after 5, 15 or 30 days and the mice challenged with 6 cysticercoids. The growth of the worms in the secondary infections decreased as either the intensity (number of cysticercoids administered) or duration of the primary infections increased. It is postulated that the results have an immunological basis.
将小鼠分组，分别感染1个、5个或10个微小膜壳绦虫囊尾蚴。感染5天、15天或30天后，用驱虫药“Zanil”终止感染，然后用6个囊尾蚴对小鼠进行攻击感染。随着初次感染的强度（给予的囊尾蚴数量）或持续时间增加，二次感染中虫体的生长减缓。据推测，这些结果具有免疫学基础。
