Department of Food and Environmental Hygiene, University of Helsinki, Finland.
Euro Surveill. 2009 Dec 10;14(49):19435.
We describe a cluster of norovirus outbreaks affecting about 200 people in Southern Finland in September and October 2009. All outbreaks occurred after consumption of imported raspberries from the same batch intended for the catering sector. Human norovirus genotype GI.4 was found in frozen raspberries. The berries were served in toppings of cakes in separate catering settings or mixed in curd cheese as a snack for children in a daycare center. The relative risk for consumption of the berry dish was 3.0 (p <or= 0.05) at the daycare centre. Human norovirus GI.4 was also detected in samples from two patients, and in berries. Both shared identical partial capsid sequences. Based on the results of epidemiological, trace-back and laboratory investigations it was concluded that one particular batch of frozen raspberries was the source of all outbreaks.
我们描述了 2009 年 9 月至 10 月在芬兰南部发生的一组诺如病毒暴发事件，约有 200 人受到影响。所有暴发均发生在食用同一批进口覆盆子之后，这些覆盆子用于餐饮行业。在冷冻覆盆子中发现了人类诺如病毒基因型 GI.4。这些浆果被用于蛋糕的浇头，或在日托中心作为儿童的奶酪小吃混合食用。日托中心食用该浆果菜肴的相对风险为 3.0（p<or=0.05）。在两名患者和浆果样本中也检测到了人类诺如病毒 GI.4。两者共享相同的部分衣壳序列。基于流行病学、追溯和实验室调查的结果，结论是，一批特定的冷冻覆盆子是所有暴发的源头。
