Giammanco Giovanni M, Di Bartolo Ilaria, Purpari Giuseppa, Costantino Claudio, Rotolo Valentina, Spoto Vittorio, Geraci Gaetano, Bosco Girolama, Petralia Agata, Guercio Annalisa, Macaluso Giusi, Calamusa Giuseppe, De Grazia Simona, Ruggeri Franco M, Vitale Francesco, Maida Carmelo M, Mammina Caterina
Dipartimento di Scienze per la Promozione della Salute e Materno Infantile 'G. D'Alessandro', Università di Palermo (DSHP-MCC, Department of Sciences for Health Promotion and Mother-Child Care, University of Palermo), Palermo, Italy E-mail:
Department of Veterinary Public Health & Food Safety, Istituto Superiore di Sanità (ISS, National Institute of Health), Rome, Italy.
J Water Health. 2014 Sep;12(3):452-64. doi: 10.2166/wh.2014.227.
During March 2011 an outbreak of gastroenteritis occurred in Santo Stefano di Quisquina, Agrigento, Sicily, Italy. Within two weeks 156 cases were identified among the 4,965 people living in the municipality. An epidemiological investigation was conducted to characterize the outbreak and target the control measures. A case was defined as a person developing diarrhea or vomiting during February 27-March 13, 2011. Stool specimens were collected from 12 cases. Norovirus (NoV) genotype GII.4 variant New Orleans 2009 was identified in stool samples from 11 of 12 cases tested (91.7%). Epidemiological investigations suggested a possible association with municipal drinking water consumption. Water samples from the public water system were tested for NoV and a variety of genotypes were detected during the first 3 months of surveillance, including GII.4 strains belonging to different variants from that involved in the gastroenteritis outbreak. Contamination of the well and springs supplying the public water network was eventually thought to be the source of the NoV contamination.
2011年3月，意大利西西里岛阿格里真托省基斯奎纳市的圣斯特凡诺发生了一起肠胃炎疫情。在两周内，该市4965名居民中确认了156例病例。开展了一项流行病学调查，以描述此次疫情特征并确定控制措施。病例定义为在2011年2月27日至3月13日期间出现腹泻或呕吐的人。从12例病例中采集了粪便样本。在接受检测的12例病例中的11例（91.7%）粪便样本中检测到诺如病毒（NoV）GII.4型新奥尔良2009变异株。流行病学调查表明可能与市政饮用水的饮用有关。对公共供水系统的水样进行了诺如病毒检测，在监测的前3个月中检测到了多种基因型，包括与肠胃炎疫情相关的不同变异株的GII.4毒株。最终认为，为公共供水网络供水的水井和泉水受到污染是诺如病毒污染的源头。
