Assessment of two complementary influenza surveillance systems

Monitoring seasonal influenza epidemics is the corner stone to epidemiological surveillance of acute respiratory virus infections worldwide. This work aims to compare two sentinel surveillance systems within the Daily Acute Respiratory Infection Information System of Catalonia (PIDIRAC), the primary...

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Autores: Torner, Nuria|||0000-0003-0143-5295, Basile, Luca|||0000-0002-4707-2621, Martínez, Ana, Rius i Gibert, Maria Cristina|||0000-0001-5189-6503, Godoy, Pere|||0000-0002-2896-7286, Jané i Checa, Mireia|||0000-0002-1302-6723, Domínguez, Ángela|||0000-0003-0219-1907, Aizpurua-Iraola, Julen, Alonso, Juan Pablo, Azemar, Joan, Aizpurua, P., Ardaya, P.M., Basas, M.D., Batalla, Joan, Biendicho, P., Bonet Beltran, Marta|||0000-0002-6417-0514, Callado, M., Campos, Santiago, Casanovas, Josep María, Ciurana, E., Clapes, M., Cots, J.M., De La Rica, D., Domingo, I., Elizalde, G., Escapa, P., Fajardo, S., Fau, Ester, Fernández, O., Fernández, Maria Amelia, Suárez-Ferrer, Cristina, Forcada, A., Fos, E., Gadea, Gloria, García García, Juan José|||0000-0002-7825-0224, Moyano-García, Rocío, Gatius, C., Gelado, M.J., Grau, Miguel L., Grivé, M., Guzman, M.C., Hernández, R., Jiménez, Gerónimo, Juscafresa, A., Llussa, A.M., Miret-López, Carme, Kristensen, Line, MacIà, E., Mainou, A., Marco, E., Martínez, M., Martínez, J.G., Marulanda, K.V., Masa, R., Moncosí, X., Naranjo, M.A., Navarro, Daniel, Ortolà, E., París, F., Pérez, M.M., Pozo, C., Pujol, R., Ribatallada, A., Ruiz, G., Sabaté, S., Sanchez, R., Sarrà, N., Tarragó, E., Teixidó, A.M., Torres, A., Valén, E., Van Esso, D., Van Tarjcwick, C., Vink Schoenholzer, R., Zabala, Eduardo, Marcos, María Ángeles|||0000-0002-5019-4873, Mosquera, Maria del Mar|||0000-0001-5863-7424, De Molina, P., Rubio, E., Isanta, Ricard, Antón Pagarolas, Andrés, 1976-|||0000-0002-1476-0815, Pumarola Suñé, Tomàs|||0000-0002-5171-7461, Vilella, Anna|||0000-0002-2329-676X, Gorrindo, Pilar, Espejo, Elena|||0000-0001-9018-7515, Andrés Santamaría, Marta|||0000-0002-5977-695X, Barcenilla, Fernando, Navarro Rubio, Gemma|||0000-0002-7195-9046, Barrabeig, Irene|||0000-0003-4789-7620, Pou, J., Alvarez, P., Plasencia, Elsa, Rebull Fatsini, Josep|||0000-0002-1460-8290, Sala-Farré, Maria Rosa, Riera Garcia, Montserrat, Camps, Neus, Follia, Núria, Oller, A., Bach Foradada, Pilar, Perez, Rafael, Torra Bastardas, Roser, Carol Torrades, Monica, Minguell, Sofia, Marce, R., Garcia-Pardo, Graciano, Olona, Montserrat|||0000-0001-5303-9361, Alvarez, A., Ramon, Juan Miguel, Mòdol, Josep Maria, Mena Pinilla, Guillermo, Campins Martí, Magda|||0000-0002-8841-6195, Massuet, C., Tora, Grzegorz|||0000-0002-2306-319X, Ferràs, Joaquim, Ferrús, Glòria
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:286583
Acceso en línea:https://ddd.uab.cat/record/286583
https://dx.doi.org/urn:doi:10.1186/s12889-019-7414-9
Access Level:acceso abierto
Palabra clave:Epidemic
Hospitalization
Influenza
Influenza like illness
Primary health care
Sentinel surveillance
Threshold
Descripción
Sumario:Monitoring seasonal influenza epidemics is the corner stone to epidemiological surveillance of acute respiratory virus infections worldwide. This work aims to compare two sentinel surveillance systems within the Daily Acute Respiratory Infection Information System of Catalonia (PIDIRAC), the primary care ILI and Influenza confirmed samples from primary care (PIDIRAC-ILI and PIDIRAC-FLU) and the severe hospitalized laboratory confirmed influenza system (SHLCI), in regard to how they behave in the forecasting of epidemic onset and severity allowing for healthcare preparedness. Epidemiological study carried out during seven influenza seasons (2010-2017) in Catalonia, with data from influenza sentinel surveillance of primary care physicians reporting ILI along with laboratory confirmation of influenza from systematic sampling of ILI cases and 12 hospitals that provided data on severe hospitalized cases with laboratory-confirmed influenza (SHLCI-FLU). Epidemic thresholds for ILI and SHLCI-FLU (overall) as well as influenza A (SHLCI-FLUA) and influenza B (SHLCI-FLUB) incidence rates were assessed by the Moving Epidemics Method. Epidemic thresholds for primary care sentinel surveillance influenza-like illness (PIDIRAC-ILI) incidence rates ranged from 83.65 to 503.92 per 100.000 h. Paired incidence rate curves for SHLCI-FLU/PIDIRAC-ILI and SHLCI-FLUA/PIDIRAC-FLUA showed best correlation index' (0.805 and 0.724 respectively). Assessing delay in reaching epidemic level, PIDIRAC-ILI source forecasts an average of 1.6 weeks before the rest of sources paired. Differences are higher when SHLCI cases are paired to PIDIRAC-ILI and PIDIRAC-FLUB although statistical significance was observed only for SHLCI-FLU/PIDIRAC-ILI (p-value Wilcoxon test = 0.039). The combined ILI and confirmed influenza from primary care along with the severe hospitalized laboratory confirmed influenza data from PIDIRAC sentinel surveillance system provides timely and accurate syndromic and virological surveillance of influenza from the community level to hospitalization of severe cases.