Hockin J C, D'Aoust J-Y, Bowering D, Jessop J H, Khanna B, Lior H, Milling M E
Laboratory Centre for Disease Control, Health Protection Branch, Health and Welfare Canada, Tunney's Pasture, Ottawa, Ontario, Canada K1A OL2.
Food Directorate, Health Protection Branch, Health and Welfare Canada, Tunney's Pasture, Ottawa, Ontario, Canada K1A OL2.
J Food Prot. 1989 Jan;52(1):51-54. doi: 10.4315/0362-028X-52.1.51.
Twenty-nine confirmed cases of Salmonella nima enterocolitis in Canada and four cases in the United States were traced to gold-foil wrapped chocolate coins from Belgium. Illness in Canadian cases occurred between September 1985 and October 1986 where the primary case in each of 24 affected families was a child ≤ 14 years of age. A product recall was issued on October 3, 1986 in Canada. Quantitative analysis of four composite samples of suspect chocolate by the most probable number (MPN) technique showed levels of 4.3 to 24.0 S. nima per 100 g product. These levels of contamination and consumption of approximately 25 g of chocolate by primary cases suggest that small numbers of S. nima precipitated clinical symptoms.
加拿大29例确诊的尼马沙门氏菌肠炎病例和美国4例病例被追溯到来自比利时的金箔包裹巧克力硬币。加拿大病例的发病时间在1985年9月至1986年10月之间，24个受影响家庭中每个家庭的首例病例都是14岁及以下的儿童。1986年10月3日加拿大发布了产品召回通知。通过最大可能数（MPN）技术对四个可疑巧克力复合样本进行定量分析，结果显示每100克产品中尼马沙门氏菌含量为4.3至24.0个。这些污染水平以及首例病例大约食用25克巧克力的情况表明，少量的尼马沙门氏菌就能引发临床症状。
