Methods Following oral infection of mice with Toxocara canis embryonated eggs, the acid-isolating technique was used to study the migratory route of Toxocara canis larvae in mice.

• 方法采用大弓首线虫感染期卵,管喂小鼠,用稀盐酸分离法进行观察。结果感染后第1天,即在鼠肝发现幼虫;