Aetiology and epidemiology of viral gastroenteritis outbreaks in Catalonia (Spain) in 2004–2005

Domı́nguez, Àngela; Torner, Núria; Ruíz, Laura; Martı́nez, Ana; Barrabeig, Irene; Camps, Neus; Godoy, Pere; Minguell, Sofía; Parrón, I.; Pumarés, Analía; Sala, M.; Bartolomé, Rosa; Perez, Unai; Simon, Michaela; Montava, Rebeca; Buesa, Javier

doi:10.1016/j.jcv.2008.03.016

Cited by 23 publications

(16 citation statements)

References 36 publications

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“…In late 2004, a pilot project was implemented to identify AGE outbreaks due to norovirus and involved the use of specific laboratory techniques. During the 12-month study, reports of outbreaks caused by norovirus infection increased significantly (10). Thereafter, with the consolidation and expansion of the use of appropriate laboratory techniques, the number of AGE outbreaks identified as being caused by norovirus has increased significantly, and these outbreaks now outnumber those caused by Salmonella.…”

Section: Acute Gastroenteritis (Age) O F Infectious Origin Is a Majormentioning

confidence: 99%

Norovirus: A Growing Cause of Gastroenteritis in Catalonia (Spain)?

Martı́nez

Torner

Broner

et al. 2013

Journal of Food Protection

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Infectious acute gastroenteritis (AGE) is a major health problem worldwide. Salmonella is a leading cause of AGE outbreaks, but viruses may be responsible for up to 80% of cases. We compared the frequency and characteristics of AGE out breaks in Catalonia due to norovirus and Salmonella and the changes in these outbreaks from 2000 through 2010. In 2006 through 2010, we also investigated the distribution by season, setting, and implicated food, the incidence rates of cases associated, and the hospitalization rates. Differences in proportions were estimated by Pearson's chi-square test, and the odds ratio (OR) and 95% confidence interval (CI) were calculated. In 2000 through 2010, the number of AGE outbreaks caused by Salmonella decreased and those caused by norovirus significantly increased. From 2006 onward, norovirus was the most common etiology in AGE outbreaks, but in foodborne outbreaks, Salmonella was the more common cause until 2010. The incidence rate per 10(5) inhabitants was greater for norovirus (20.81 versus 3.97, P < 0.001), and the hospitalization rate was lower for norovirus (0.84 versus 4.69, P < 0.001). Salmonella infections occurred more frequently in the warmer months, and norovirus infections were more common in the colder months, both in terms of total outbreaks (OR = 4.50; 95% CI, 2.85 to 7.11; P < 0.001) and foodborne outbreaks (OR = 4.38; 95% CI, 2.42 to 7.95; P < 0.001). Norovirus infections were less common in private homes (OR = 0.08; 95% CI, 0.04 to 0.14; P < 0.001) and more common in nursing homes (P < 0.001) and hospitals or long-term care facilities (OR = 14.09; 95% CI, 3.35 to 59.33; P < 0.001). Foods most frequently implicated in norovirus infection outbreaks were seafood (22% ; OR = 7.89; 95% CI, 2.59 to 24.3; P < 0.001), and those most common in Salmonella infection outbreaks were mayonnaise and similar items (30.2%; OR = 0.05; 95% CI, 0.01 to 0.22; P < 0.001). Foodborne outbreaks in which the vehicle was not identified were more frequent in cases of norovirus infection (OR = 4.59; 95% CI, 2.54 to 8.30; P < 0.001). Our results indicate that norovirus rather than Salmonella is the most common cause of AGE outbreaks in Catalonia. Foodborne AGE outbreaks were more commonly caused by norovirus than by Salmonella only in 2010, the last year of the study.

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Section: Acute Gastroenteritis (Age) O F Infectious Origin Is a Majormentioning

confidence: 99%

Norovirus: A Growing Cause of Gastroenteritis in Catalonia (Spain)?

Martı́nez

Torner

Broner

et al. 2013

Journal of Food Protection

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“…GII.4 NoVs evolved rapidly and in the last 15 years six epidemic variants have been identified. [2][3][4] RT-PCR and real-time RT-PCR have been used to screen for noroviruses in fecal samples, shellfish and other food matrices because of the inability of noroviruses to replicate in cell culture. [5][6][7][8] Noroviruses are recognised as a major cause of acute gastroenteritis worldwide and are frequently associated with the consumption of contaminated raw or undercooked food, shellfish Table 1 Primers and probes used in this study (R = A or G; N = A, C, G or T; Y = C or T and W = A or T).…”

Section: Introductionmentioning

confidence: 99%

Frequency and phylogeny of norovirus in diarrheic children in Istanbul, Turkey

Özkul

Kocazeybek

Turan

et al. 2011

Journal of Clinical Virology

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“…Los resultados del estudio llevado a cabo por Domínguez et al 27 permitieron obtener una descripción de las características clínico epidemiológicas de los brotes de gastroenteritis por norovirus en Cataluña poniendo de manifiesto el incremento observado en los años previos a dicho estudio y su relevancia en comparación con entidades de importancia patogénica ampliamente reconocida como Salmonella spp. Se observó que la tasa de incidencia de los brotes de gastroenteritis de etiología vírica era elevada (8,1 brotes por millón de personas/año) y comparable a la que presentan los brotes de salmonelosis no tifó-dica (10,2 brotes por millón de personas/año), y que la tasa de incidencia de los casos asociados a brotes de gastroenteritis de etiología vírica (24,9 por 100,000 personas/año) fue superior a la que presentan los casos asociados a brotes de salmonelosis no tifódica (9,2 por 100,000 personas/año) 28 .…”

Section: Introductionunclassified

“…Un 8,3% de los brotes se diagnosticó teniendo en cuenta criterios clínicos y epidemiológicos. Mientras no sea posible diagnosticar mediante técnicas de laborato-rio todos los brotes, parece razonable combinar resultados de laboratorio y criterios de Kaplan para estimar de manera adecuada la magnitud del problema de la gastroenteritis por norovirus 27 .…”

Section: Introductionunclassified

Estudio clínico-epidemiológico de los brotes de gastroenteritis víricas en Cataluña

Torner¹

2009

Rev. Esp. Salud Publica

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Acute gastroenteritis is an important health problem that it affects children and adults, especially the elderly. It is estimated that virus can account for 80% of totality of gastroenteritis. The true magnitude of these processes is difficult to consider since the more or less slight cases usually pass through the systems of notification and monitoring unnoticed. In Catalonia 261,222 cases of enteritis and diarrhoeas were declared during 2006, which is equivalent to an incidence rate of 3,661/100,000 persons/year. In order to contribute to a better knowledge of the relevance of gastroenteritis outbreaks caused by norovirus in Catalonia, a study was carried out to assess the clinical-epidemiological features of viral gastroenteritis outbreaks occurring during one year. The results obtained indicate that although Salmonella is still the most frequent causal agent implied (41%; 74 of 180) in gastroenteritis outbreaks of known aetiology, the second causal agent is norovirus (33.3%; 60 of 180). The greater knowledge of the characteristics and the ascertainment of molecular methods in the diagnosis of these outbreaks translated in a reduction in the number of gastroenteritis outbreaks of any aetiology and especially of those caused by norovirus.

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Aetiology and epidemiology of viral gastroenteritis outbreaks in Catalonia (Spain) in 2004–2005

Cited by 23 publications

References 36 publications

Norovirus: A Growing Cause of Gastroenteritis in Catalonia (Spain)?

Norovirus: A Growing Cause of Gastroenteritis in Catalonia (Spain)?

Frequency and phylogeny of norovirus in diarrheic children in Istanbul, Turkey

Estudio clínico-epidemiológico de los brotes de gastroenteritis víricas en Cataluña

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