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Title: A Waterborne Gastroenteritis Outbreak Caused by a GII Norovirus in a Holiday Camp in Catalonia (Spain), 2017
Author: Carol, Mònica
Guadalupe-Fernández, Víctor
Rius, Cristina
Soldevila, Núria
Razquin, Efrén
Guix Arnau, Susana
Domínguez García, Àngela
On Behalf Of The Working Group For The Study Of Outbreaks Of Acute Gastroenteritis In Catalonia
Keywords: Virus
Malalties transmeses per l'aigua
Waterborne diseases
Issue Date: 8-Sep-2021
Publisher: MDPI
Abstract: On 2 February 2017, Epidemiological Surveillance Services were notified of an outbreak of acute gastroenteritis (AGE) among schoolchildren who had taken part of a school trip from 30 January to 3 February 2017 at a holiday camp in Catalonia. A retrospective cohort study was performed to identify the causative agent, estimate the magnitude of the outbreak and identify its source, as well as to determine the route of transmission. Data collected by standardised questionnaires identified 41 episodes of AGE among 174 individuals who attended the camp. Cases had mainly symptoms of abdominal pain (73.8%), nausea (64.3%), vomiting (54.8%), diarrhoea (45.2%) and headache (42.9%). Consumption of water was associated with gastroenteritis (crude RR: 1.72, 95%CI: 1.01-2.92; adjusted RR: 1.88, 95%CI 1.03-3.56). NoV GII was detected in faeces (5 out of 13) and water samples. Additionally, faecal indicator bacteria and protozoa were detected in water samples. The outbreak showed a high attack rate and was caused by a natural water fountain not properly treated and not monitored for safety quality. There could have been a discharge of wastewater at a point close to the fountain; however, the source of contamination of the water could not be identified. Health education may be useful to eliminate risks associated with the consumption of untreated water from natural fountains.
Note: Reproducció del document publicat a:
It is part of: Viruses, 2021, vol. 13, num. 9, p. 1792
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ISSN: 1999-4915
Appears in Collections:Articles publicats en revistes (Genètica, Microbiologia i Estadística)
Articles publicats en revistes (Medicina)

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