Investigation and control of a Norovirus outbreak of probable waterborne transmission through a municipal groundwater system

被引:22
|
作者
Giammanco, Giovanni M. [1 ]
Di Bartolo, Ilaria [2 ]
Purpari, Giuseppa [3 ]
Costantino, Claudio [1 ]
Rotolo, Valentina [1 ]
Spoto, Vittorio [4 ]
Geraci, Gaetano [4 ]
Bosco, Girolama [4 ]
Petralia, Agata [4 ]
Guercio, Annalisa [3 ]
Macaluso, Giusi [3 ]
Calamusa, Giuseppe [1 ]
De Grazia, Simona [1 ]
Ruggeri, Franco M. [2 ]
Vitale, Francesco [1 ]
Maida, Carmelo M. [1 ]
Mammina, Caterina [1 ]
机构
[1] Univ Palermo, DSHP MCC, Dipartimento Sci Promoz Salute & Materno Infantil, Palermo, Italy
[2] Ist Super Sanita, Natl Inst Hlth, Dept Vet Publ Hlth & Food Safety, I-00161 Rome, Italy
[3] Ist Zooprofilatt Sperimentale Sicilia, IZS, Expt Zooprophylact Inst Sicily, Palermo, Italy
[4] ASP, Dept Prevent, Local Hlth Author Agrigento, Agrigento, Italy
关键词
drinking water; Italy; Norovirus; outbreak; waterborne; REVERSE-TRANSCRIPTION-PCR; NORWALK-LIKE VIRUSES; VIRAL GASTROENTERITIS; INDICATOR BACTERIA; DRINKING-WATER; GENOGROUP-I; ATTACK RATE; RT-PCR; EPIDEMIOLOGY; ENTEROVIRUSES;
D O I
10.2166/wh.2014.227
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
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.
引用
收藏
页码:452 / 464
页数:13
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