Gianfranceschi M V, Gattuso A, D'Ottavio M C, Fokas S, Aureli P
National Centre for Food Quality and Risk Assessment, Istituto Superiore di Sanità, Rome, Italy.
Euro Surveill. 2007 Nov 1;12(11):E7-8. doi: 10.2807/esm.12.11.00746-en.
Since 1993, the reporting of listeriosis has been mandatory in Italy. The surveillance system based on case notifications from physicians is managed by the Ministry of Health. The information collected includes only gender, age and case distribution by region. To gather more information, an active surveillance was conducted for 12 months (2002-2003). All hospital microbiological laboratories in Italy (n=103) were given clinical and food questionnaires and were requested to report positive cases and send strains for testing. A higher number of cases of listeriosis were reported by this active surveillance compared to the mandatory notifications. In addition, information on risk factors, clinical symptoms and outcomes of 77 reported cases were analysed. In one case it was possible to trace the source of infection. Of the 77 cases of listeriosis, 41 Listeria monocytogenes isolates were characterised by serotype and pulsotype. More than 95% of the strains belonged to serotypes 1/2a, 4b and 1/2b; molecular analysis revealed 23 different AscI pulsotypes. The information collected is very important for understanding the real situation of listeriosis in Italy. It can be used to take effective actions in improving food safety and to provide dietary advice to individuals at greater risk of infection.
自1993年以来，意大利规定必须报告李斯特菌病病例。基于医生病例报告的监测系统由卫生部管理。收集的信息仅包括性别、年龄以及按地区划分的病例分布情况。为了收集更多信息，于2002年至2003年进行了为期12个月的主动监测。向意大利所有医院微生物实验室（共103个）发放了临床和食品调查问卷，并要求报告阳性病例并送检菌株进行检测。与强制报告相比，通过这种主动监测报告的李斯特菌病病例数更多。此外，还对77例报告病例的危险因素、临床症状和转归信息进行了分析。在1例病例中追踪到了感染源。在77例李斯特菌病病例中，对41株单核细胞增生李斯特菌分离株进行了血清型和脉冲场凝胶电泳型分析。超过95%的菌株属于血清型1/2a型、4b型和1/2b型；分子分析显示有23种不同的AscI脉冲场凝胶电泳型。所收集的信息对于了解意大利李斯特菌病的实际情况非常重要。它可用于采取有效行动改善食品安全，并为感染风险较高的个人提供饮食建议。
