• Atencion primaria · Jan 2021

    Case Reports Observational Study

    [Intensified epidemiological surveillance of arbovirosis: First case of native dengue fever in Catalonia (Spain), Northern Metropolitan Area of Barcelona, 2018-2019].

    • Lluís Valerio, Sílvia Roure Díez, Rosa Benítez, Gema Fernández-Rivas, Belén Rivaya, Carme Expósito, Carme Saperas, Fernando Salvador, and Bonaventura Clotet.
    • Programa de Salut Internacional (PROSICS) Metropolitana Norte, Universitat Autònoma de Barcelona, Institut Català de la Salut, Barcelona, España. Electronic address: lvalerio.bnm.ics@gencat.cat.
    • Aten Primaria. 2021 Jan 1; 53 (1): 73-80.

    ObjectiveTo evaluate the results obtained by a surveillance network on arbovirosis composed by doctors and nurses located at hospitals and Primary Care trained in their identification, diagnostic confirmation and clinical management.LocationNorth Metropolitan Area of Barcelona (1,400,000 inhabitants; Catalonia; Spain) during a calendar year.ParticipantsSeven Primary Care and 10 hospital physicians plus 4 Primary Care nurses.Type Of StudyA prospective observational study.Main MeasurementsDemographic, epidemiological (autochthonous/imported, suspect/probable/confirmed case) and healthcare variables (symptoms, serological profile, viral period) were defined.ResultsOf the 34 patients identified, 26 (76.5%) met study criteria. Among them, any arbovirosis was confirmed in 14 (53.8%): 13 dengue plus 1chikungunya fever. There were no cases of Zika fever. There was a history of travel to endemic areas 23 (88.4%), but not in 3cases (11.6%) in which the possibility of an indigenous transmission was considered; of them, a case of dengue was confirmed. The estimated incidence of arbovirosis was 0.4 (95%CI: 0.33-0.51) cases ×10,000hab/year which, when compared to the estimated incidence in the same geographical area during the period 2009-2013 (0.19cases ×10,000hab/year; 95%CI: 0.07-0.31), a significant increase was found (P=.044). Patients within viremia period at the time of their first medical visit were 11 (42.3%).ConclusionsAn intensified epidemiological surveillance program defined at Primary Care and hospital levels is able to detect significantly more cases of imported and autochthonous arbovirosis. Possibly we are witnessing an increase in the incidence of imported arbovirosis and, thus, measures aimed at their identification and confirmation should be reinforced.Copyright © 2020 The Authors. Publicado por Elsevier España, S.L.U. All rights reserved.

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