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对成都市1997年30364例食品从业人员肠道沙门氏菌属与志贺氏菌属的带菌检查，检出肠道带菌者135例，带菌率为0．44％。其中，检出沙门氏菌128株，共6个血清型。德尔卑沙门氏菌检出最高，鼠伤寒次之，构成比分别为40．35％和32．81％；从年龄分布看，20岁以下年龄组所占比例最高，为1．28％；就人员行业分布而言，招待所食堂、餐饮等饮食服务性质的人员带菌所占比例大，为1．5％；带菌多为夏秋季，带菌率为0．59％和0．49％。
A total of 30,364 cases of food workers in Chengdu in 1997 were checked for carriers of Salmonella spp. and Shigella spp. Intestinal carriers were detected in 135 cases, with a carrier rate of 0.44%. Among them, 128 strains of Salmonella were detected, a total of 6 serotypes. The highest detection rate was for Salmonella derby, followed by typhoid fever in rats, with a composition ratio of 40.35% and 32.81% respectively. From the age distribution, the age group under 20 was the highest, accounting for 1.28%; In terms of distribution, the proportion of people serving food and beverages such as canteens and restaurants in the hostels was large, accounting for 1.5% of the total; the carriers were mostly summer and autumn, and the carrier rates were 0.59% and 0.49%.