Soeripto N
Department of Parasitology, Faculty of Medicine, Gadjah Mada University, Yogyakarta, Indonesia.
Southeast Asian J Trop Med Public Health. 1991 Jun;22(2):216-21.
A study on the reinfection and infection rates of soil-transmitted helminths was conducted in Kemiri Sewu, Godean District, Sleman Regency, Yogyakarta Special Province, Indonesia, from August 1988 to June 1990. A total 61 individuals rendered Ascaris lumbricoides egg-negative by drug treatment were used in the reinfection study and 412 individuals found negative for Ascaris eggs in the pretreatment stool examination were used for the infection rate study. In both groups, children had higher and faster reinfection and infection rates than adults. The start of reinfection was 4 months after treatment, and the start of infection was at the 1st month. At 20 months after treatment, the reinfection rate of ascariasis was 14.8% and the infection rate was 11.4% among both children and adults. There were 140 subjects rendered Trichuris trichiura egg-negative by drug treatment, and 317 Trichuris egg-negative at the pretreatment stool examination which were used in the reinfection and infection rates studies. In general, the reinfection rates of T. trichiura among adults were higher than those among children. The start of reinfection was 4 months after treatment, and the infection was at the 1st month. At the end of 20 months, the reinfection rate was 36.4% and the infection rate was 21.8% among both children and adults. A total 83 subjects rendered Necator americanus egg-negative by drug treatment and 365 N. americanus egg-negative at pretreatment stool examination were used in the reinfection and infection rate studies. Throughout the study, adults had always higher reinfection and infection rates than children, while adults males had higher reinfection rates than adults females. The start of reinfection was 4 months after treatment, and the start of infection was at the 1st month; they were 25.3% and 9.3% respectively. At the end of 20 months, the reinfection rate was 65.1%, and the infection rate was 47.9% among both children and adults.
1988年8月至1990年6月，在印度尼西亚日惹特别行政区斯莱曼摄政区戈迪安县的凯米里·塞武进行了一项关于土壤传播蠕虫再感染和感染率的研究。在再感染研究中使用了61名经药物治疗后蛔虫卵呈阴性的个体，在感染率研究中使用了412名在治疗前粪便检查中蛔虫卵呈阴性的个体。在这两组中，儿童的再感染和感染率均高于成人，且再感染和感染速度更快。再感染始于治疗后4个月，感染始于第1个月。治疗20个月后，儿童和成人的蛔虫病再感染率为14.8%，感染率为11.4%。有140名经药物治疗后鞭虫卵呈阴性的受试者，以及317名在治疗前粪便检查中鞭虫卵呈阴性的受试者被用于再感染和感染率研究。总体而言，成人的鞭虫再感染率高于儿童。再感染始于治疗后4个月，感染始于第1个月。在20个月末，儿童和成人的再感染率为36.4%，感染率为21.8%。共有83名经药物治疗后美洲板口线虫卵呈阴性的受试者，以及365名在治疗前粪便检查中美洲板口线虫卵呈阴性的受试者被用于再感染和感染率研究。在整个研究过程中，成人的再感染和感染率始终高于儿童，而成年男性的再感染率高于成年女性。再感染始于治疗后4个月，感染始于第1个月，分别为25.3%和9.3%。治疗20个月后，儿童和成人的再感染率为65.1%，感染率为47.9%。
