al-Zubaidy A A, el Bushra H E, Mawlawi M Y
Department of Preventive Medicine, Ministry of Health, Riyadh, Kingdom of Saudi Arabia.
East Afr Med J. 1995 Jun;72(6):373-5.
In June 1992, 19 cases of typhoid fever were reported from the town of Al-Mudhnab town (population 10,000) in the Qassim region of central Saudi Arabia. Ten of the cases were females (53%), and these were clustered by onset in a 15-day period. Cases in boys followed the girls and were more dispersed over time. Cases included 14 school-age children, four pre-school children, and the wife of a girls' school bus driver. The attack rates (AR) did not differ between boys' and girls' schools and ranged from 5.5 to 15.87 per 1,000 in six different schools. All patients except one lived within two blocks in one quarter of the town. Typhoid fever was associated with attending a school potluck dinner (OR = 5.31; 95% CI 1.02, 28.85) or eating food prepared for that dinner (OR = 6.95; 95%; CI 1.40, 36.61). Cake with cream topping from the dinner was kept overnight at room temperature and served to girls on the bus the next day. The OR of eating leftover cake on the school bus and becoming ill was 11.04 (95%; CI 1.59, 95.27). The localization of this outbreak by time and place and by the age groups affected, supports the conclusion that the outbreak was foodborne. The most likely food was cream topping on the cake. Lessons on proper food handling and storage should be included in home economics classes.
1992年6月，沙特阿拉伯中部卡西姆地区的穆德赫纳布镇（人口10000）报告了19例伤寒热病例。其中10例为女性（53%），这些病例在15天内集中发病。男孩病例紧随女孩之后，且随着时间推移分布更为分散。病例包括14名学龄儿童、4名学龄前儿童以及一名女校车司机的妻子。男校和女校的发病率没有差异，在六所不同学校中，发病率在每1000人5.5至15.87之间。除一名患者外，所有患者都居住在该镇四分之一区域内的两个街区范围内。伤寒热与参加学校聚餐晚宴（比值比=5.31；95%置信区间1.02, 28.85）或食用为该晚宴准备的食物（比值比=6.95；95%；置信区间1.40, 36.61）有关。晚宴上带奶油顶的蛋糕在室温下放置了一夜，第二天给校车上的女孩们食用。在校车上食用剩余蛋糕并生病的比值比为11.04（95%；置信区间1.59, 95.27）。此次疫情在时间、地点以及受影响年龄组方面的局限性，支持了疫情是由食物传播的这一结论。最有可能的食物是蛋糕上的奶油顶。家政课程应纳入关于正确食物处理和储存的内容。
