Barrell R A, Rowland M G
Trans R Soc Trop Med Hyg. 1979;73(1):85-90. doi: 10.1016/0035-9203(79)90136-6.
It is common practice in rural areas of The Gambia to prepare infant foods in quantities which are sufficient to meet the needs of the day rather than one meal. These are then stored at ambient temperatures for periods up to 12 hours for feeding to the child on demand. The total viable counts and levels of Bacillus cereus, Clostridium welchii, Staphylococcus aureus and Escherichia coli were determined in 294 infant foods samples from nought to eight hours after preparation. The presence of Salmonella was determined in 10 g samples of food. In the first hour after preparation the proportion of foods dangerously contaminated was high during the rainsy season, significantly more so than during the dry season. Foods not consumed fresh were very often hazardous and almost always so after 8 hours. This problem may be a causal factor in weanling diarrhoea which also shows marked seasonal variation in prevalence.
在冈比亚农村地区，人们通常会准备足够一天所需而非一顿饭量的婴儿食品。这些食品随后在室温下储存长达12小时，以便按需喂给孩子。在制备后的零至八小时内，对294份婴儿食品样本中的总活菌数以及蜡样芽孢杆菌、产气荚膜梭菌、金黄色葡萄球菌和大肠杆菌的含量进行了测定。在10克食品样本中检测沙门氏菌的存在情况。在制备后的第一个小时，雨季期间受严重污染的食品比例很高，明显高于旱季。未新鲜食用的食品往往具有危险性，8小时后几乎总是如此。这个问题可能是断奶期腹泻的一个致病因素，断奶期腹泻的患病率也有明显的季节性变化。
