The aim of this study was to determine what weaning foods and food preparation practices expose children to a high risk of diarrhoeal disease through exposure to a contaminated diet. Bacterial contamination of 897 food and 896 drinking water samples was assessed in a water and sanitation intervention project. The geometric mean of faecal coliforms per g or ml was 7.5 x 10(3) in left-over rice. 1.4 x 10(2) in other types of boiled rice, 2.5 x 10(2) in milk, 4.8 in household drinking water, and 3.5 in bread. Multiplication of faecal coliforms occurred when there was a delay of more than 4 h between preparation and consumption of food. All samples were more contaminated in the rainy than in the dry season. Strategies to reduce contamination should therefore focus on 'wet' foods, early consumption after preparation, and re-heating of left-over foods. Understanding the reasons for the faulty practices is also essential to the formulation of effective measures.
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机译:这项研究的目的是确定哪些断奶食品和食物制备方法会通过暴露于受污染的饮食而使儿童面临腹泻疾病的高风险。在水和卫生干预项目中评估了897种食物和896种饮用水样品的细菌污染。剩余大米中每克或毫升的粪便大肠菌的几何平均数为7.5 x 10(3)。在其他类型的米饭中为1.4 x 10(2),在牛奶中为2.5 x 10(2),在家庭饮用水中为4.8,在面包中为3.5。当准备和食用食物之间的延迟超过4小时时,便会出现粪便大肠菌的繁殖。与雨季相比,雨季中所有样品的污染程度更高。因此,减少污染的策略应侧重于“湿”食品,准备后的早期食用以及剩余食品的重新加热。了解错误做法的原因对于制定有效措施也至关重要。
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