Epidemiology of GII.4 and GII.2 norovirus outbreaks in closed and semi-closed institutions in 2017 and 2018
Por:
Cornejo-Sánchez T., Soldevila N., Coronas L., Alsedà M., Godoy P., Razquín E., Sabaté S., Guix S., Rodríguez Garrido V., Bartolomé R., Domínguez A., Álvarez J., Belver A.I., Camps N., Minguell S., Carol M., Izquierdo C., Parrón I., Pérez C., Rovira A., Sabaté M., Sala M.R., Vileu R.M., Barrabeig I., Jané M., Martínez A., Torner N., de Benito J., Moreno-Martínez A., Rius C., de Andres A., Camprubí E., Cunillé M., Forns M.L., de Simón M.
Publicada:
30 ene 2023
Ahead of Print:
30 ene 2023
Resumen:
Norovirus infections are a leading cause of acute gastroenteritis outbreaks worldwide, with genotypes GII.2 and GII.4 being the most prevalent. The aim of this study was to compare the characteristics of GII.2 and GII.4 norovirus outbreaks reported in Catalonia in closed or semi-closed institutions in 2017 and 2018. The epidemiological and clinical characteristics of GII.2 and GII.4 outbreaks were compared using the chi-square test or Fisher's exact test for categorical variables and the Mann–Whitney U test for continuous variables. Odds ratios and their 95% confidence intervals were estimated. 61 outbreaks were reported: GII.4 was the causative agent in 12 outbreaks (30%) and GII.2 in 9 outbreaks (22.5%). GII.2 outbreaks were detected more frequently in schools or summer camps (66.7%) and GII.4 outbreaks in nursing homes (91.7%) (p = 0.01). Ninety-three people were affected in GII.2 outbreaks and 94 in GII.4 outbreaks. The median age was 15 years (range: 1–95 years) in GII.2 outbreaks and 86 years (range: 0–100 years) in GII.4 outbreaks (p < 0.001). Nausea, abdominal pain, and headache were observed more frequently in persons affected by GII.2 outbreaks (p < 0.05). Symptomatic cases presented a higher viral load suggestive of greater transmission capacity, although asymptomatic patients presented relevant loads indicative of transmission capacity. © 2023, The Author(s).
Filiaciones:
Cornejo-Sánchez T.:
Laboratori de Microbiologia, Hospital Universitari Vall d’Hebrón, Barcelona, Spain
Soldevila N.:
CIBER Epidemiología y Salut Pública (CIBERSP), Madrid, Spain
Departament de Medicina, Universitat de Barcelona, Barcelona, Spain
Coronas L.:
Departament de Medicina, Universitat de Barcelona, Barcelona, Spain
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Alsedà M.:
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Godoy P.:
CIBER Epidemiología y Salut Pública (CIBERSP), Madrid, Spain
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Institut de Recerca Biomédica de Lleida, IRB Lleida, Lleida, Spain
Razquín E.:
Agència de Salut Pública de Barcelona (ASPB), Barcelona, Spain
Sabaté S.:
Agència de Salut Pública de Barcelona (ASPB), Barcelona, Spain
Guix S.:
Departament de Genètica Microbiologia i Estadística, Grup de Virus Entèrics, Universitat de Barcelona, Barcelona, Spain
Nutrition and Food Safety Research Institute (INSA·UB), Universitat de Barcelona, Santa Coloma de Gramenet, 08921, Spain
Rodríguez Garrido V.:
Laboratori de Microbiologia, Hospital Universitari Vall d’Hebrón, Barcelona, Spain
Bartolomé R.:
Laboratori de Microbiologia, Hospital Universitari Vall d’Hebrón, Barcelona, Spain
Domínguez A.:
CIBER Epidemiología y Salut Pública (CIBERSP), Madrid, Spain
Departament de Medicina, Universitat de Barcelona, Barcelona, Spain
Álvarez J.:
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Belver A.I.:
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Camps N.:
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Minguell S.:
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Carol M.:
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Izquierdo C.:
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Parrón I.:
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Pérez C.:
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Rovira A.:
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Sabaté M.:
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Sala M.R.:
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Vileu R.M.:
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Barrabeig I.:
CIBER Epidemiología y Salut Pública (CIBERSP), Madrid, Spain
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Jané M.:
CIBER Epidemiología y Salut Pública (CIBERSP), Madrid, Spain
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Martínez A.:
CIBER Epidemiología y Salut Pública (CIBERSP), Madrid, Spain
Agencia de Salut Pública de Catalunya, Barcelona, Spain
Torner N.:
CIBER Epidemiología y Salut Pública (CIBERSP), Madrid, Spain
Agencia de Salut Pública de Catalunya, Barcelona, Spain
de Benito J.:
CIBER Epidemiología y Salut Pública (CIBERSP), Madrid, Spain
Agència de Salut Pública de Barcelona (ASPB), Barcelona, Spain
Moreno-Martínez A.:
CIBER Epidemiología y Salut Pública (CIBERSP), Madrid, Spain
Agència de Salut Pública de Barcelona (ASPB), Barcelona, Spain
Rius C.:
CIBER Epidemiología y Salut Pública (CIBERSP), Madrid, Spain
Agència de Salut Pública de Barcelona (ASPB), Barcelona, Spain
de Andres A.:
Agència de Salut Pública de Barcelona (ASPB), Barcelona, Spain
Camprubí E.:
Agència de Salut Pública de Barcelona (ASPB), Barcelona, Spain
Cunillé M.:
Agència de Salut Pública de Barcelona (ASPB), Barcelona, Spain
Forns M.L.:
Agència de Salut Pública de Barcelona (ASPB), Barcelona, Spain
de Simón M.:
Agència de Salut Pública de Barcelona (ASPB), Barcelona, Spain
gold, Green Published, All Open Access, Gold, Green
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