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作者在一所蛲虫感染率为50～60％的日托幼儿园对一个班级蛲虫感染儿童的蛲虫卵排出情况作了连续19个月的定期观察。发现患儿每次人均采得卵数在1～7月间均维持在30个卵以下,8月份为高峰(285.9个卵),12月份回落,2～3月份为低谷,此后又逐渐回升。为验证,于另一年对另一班级作为期一年的观察。除因感染度差异而绝对值较低外,得到了相似的虫卵消长曲线。此结论为儿童集居机构蛲虫病的防治提供了理论依据。作者对两个幼儿园四个班级104名蛲虫患儿作了肛内采样。检获幼虫者63人,累计阳性率60.58％,1011人次检查中,153人次获幼虫,检出率15.13％,共检获幼虫2142条,平均2.12条/人/次,观察结果表明虫卵自孵成幼虫的全年消长曲线与其虫卵消长曲线相吻合。上述结果有力地支持Schüffner提出蛲虫存在逆回感染(Retroinfection)的观点,并认为是少数患儿难以治愈的主要原因之一。
The authors conducted a regular 19-month regular observation of the ovulation of a pinworm-infected child in a class of pinworm in a daycare nursery with a pinworm infection rate of 50-60%. It was found that the average number of oocytes retrieved per person in the first trimester was below 30 eggs in the first seven months, the highest peak in August (285.9 eggs), the second lowest in December and the second lowest in the second month in March. For verification, another year is observed in another year. Except for the lower absolute value due to the difference in the degree of infection, similar egg growth and decay curves were obtained. This conclusion provides a theoretical basis for the prevention and treatment of enterobiasis in children’s settlement. The authors performed intra-anal sampling of 104 pinworm children in four classes of two kindergartens. A total of 63 larvae were seized, with a cumulative positive rate of 60.58%. 153 out of 1011 people were larvae with a detection rate of 15.13%. A total of 2142 larvae were seized, with an average of 2.12 / person / time. The larvae’s annual growth and decline curve coincides with the growth and decline curve of its eggs. The above results strongly support Schüffner’s suggestion that retrovirus is present in the worms and are considered as one of the major causes of refractory childhood illnesses.