Control of schistosomiasis mansoni in Ravena (Sabara State of Minas Gerais, Brazil) through water supply and quadrennial treatments
Control of schistosomiasis mansoni in Ravena (Sabara State of Minas Gerais, Brazil) through water supply and quadrennial treatments
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DOI：
10.1590/s0074-02761996000600001
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发表时间：
1996-11-01
影响因子：
2.8
通讯作者：
Katz, N
中科院分区：
文献类型：
--
作者：
Coura, P;Rocha, RS;Katz, N
在这项研究中，对1980年至1992年期间在拉维纳（萨巴拉，米纳斯吉拉斯州）血吸虫病控制规划中取得的结果进行了评价。该方案采用的控制措施是：每四年（1980/84/88年）对感染曼氏血吸虫的人进行特殊治疗，1980年向90%的居民供应自来水。流行率（36.7% ~ 11.5%,p < = 0.05）和感染强度（228.9个蛋/克粪便（epg）， s = 3.7 ~ 60.3 epg, s = 3.5, p < = 0.05）显著降低。该地区没有诊断出这种严重疾病的病例。与感染独立相关的因素是1980年每日采沙和住宅缺乏自来水，1992年每日采沙、捕鱼和每周游泳。综上所述，自来水的供应与四年一次的处理一起显著降低了曼氏链球菌感染的流行率和强度，即使在处理间隔四年后，仍有持续低指数的额外增加。
In this study, the results obtained in a control programme of schistosomiasis in Ravena (Sabara, Minas Gerais) between 1980 and 1992 are evaluated. Control measures used in this programme were: specific treatment of the people infected with Schistosoma mansoni at four year-intervals (1980/84/88) and the supply of tap water to 90% of the residences in 1980. A significant reduction of the prevalence (36.7% to 11.5% p less than or equal to 0.05) and of the intensity of the infection (228.9 eggs per gram of feces (epg), s = 3.7 to 60.3 epg, s = 3.5, p less than or equal to 0.05) was observed. No cases of the severeform of the disease were diagnosed in the area. Factors independently associated with the infection were in 1980 daily sand extraction and the lack of tap water in residences and in 1992 daily sand extraction and fishing and weekly swimming. Concluding, the supply of tap water together with quadrennial treatments significantly diminished both the prevalence and intensity of the S. mansoni infection, with the additional gain of persistent low indices even after four-year intervals between the treatments.