Please use this identifier to cite or link to this item:
Title: Epidemiology of Acute Gastroenteritis Outbreaks Caused by Human Calicivirus (Norovirus and Sapovirus) in Catalonia: A Two Year Prospective Study, 2010-2011
Author: Torner Gràcia, Núria
Martinez, Ana
Broner, Sonia Judith
Moreno, Antonio
Camps, Neus
Domínguez García, Àngela
Working Group for the Study of Acute Viral...
Keywords: Epidemiologia
Salut pública
Assistència hospitalària
Public health
Hospital care
Issue Date: 27-Apr-2016
Publisher: Public Library of Science (PLoS)
Abstract: Background The epidemiology of cases of acute gastroenteritis (AGE) of viral etiology is a relevant pub- lic health issue. Due to underreporting, the study of outbreaks is an accepted approach to investigate their epidemiology. The objective of this study was to investigate the epidemio- logical characteristics of AGE outbreaks due to norovirus (NoV) and sapovirus (SV) in Catalonia. Material and Methods Prospective study of AGE outbreaks of possible viral etiology notified during two years in Catalonia. NoV and SV were detected by real time reverse transcription polymerase (RT- PCR). Results A total of 101 outbreaks were registered affecting a total of 2756 persons and 12 hospitali- zations (hospitalization rate: 0.8x1,000,000 persons-year); 49.5% of outbreaks were food- borne, 45.5% person to person and 5% waterborne. The distribution of outbreaks according to the setting showed a predominance of catering services (39.6%), nursing homes and long term care facilities (26.8%) and schools (11.9%). The median number of cases per out- break was 17 (range 2 - 191). The total Incidence rate (IR) was 18.3 per 100,000 persons- years (95%CI: 17.6 - 19.0). The highest IR was in persons aged 65 years (43.6x100,000 (95% CI: 41.0 - 46.2)) (p < 0.001). A total of 1065 samples were analyzed with a positivity rate of 60.8%. 98% of positive samples were NoV (GII 56.3%; GI 4.2%; GII+GI 4.2%; non- typ- able 33.0%). SV was identified in two person-to-person transmission outbreaks in children. Conclusions These results confirm the relevance of viral AGE outbreaks, both foodborne and person-to- person, especially in institutionalized persons. SV should be taken into account when inves- tigating viral AGE outbreaks.
Note: Reproducció del document publicat a:
It is part of: PLoS One, 2016, vol. 11, num. 4, p. e0152503
Related resource:
ISSN: 1932-6203
Appears in Collections:Articles publicats en revistes (Medicina)

Files in This Item:
File Description SizeFormat 
662135.pdf599.96 kBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons