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Revista Española de Salud Pública

On-line version ISSN 2173-9110Print version ISSN 1135-5727


DOMINGUEZ, Ángela  and  GRUPO DE TRABAJO DEL PROYECTO CIBERESP DE CASOS Y CONTROLES SOBRE LA GRIPE PANDEMICA et al. Risk Factors of Influenza (H1N1) 2009 Hospitalization and Effectiveness of Pharmaceutical and Nonpharmaceutical Interventions in its Prevention: A Case-Control study. Rev. Esp. Salud Publica [online]. 2011, vol.85, n.1, pp.3-15. ISSN 2173-9110.

Potentially useful pharmaceutical measures to limit the impact of pandemic influenza in the community include antiviral drugs (neuraminidase inhibitors) and the influenza and pneumococcal vaccines, as influenza predisposes to bacterial pneumonia caused by Streptococcus pneumoniae. Non-pharmaceutical measures include hand washing and respiratory hygiene. Due to the lack of knowledge of the effectiveness of these measures in a pandemic situation, in September 2009, CIBER de Epidemiología y Salud Pública presented a multicenter case-control study, with controls matched for age, hospital and date of hospitalization, to investigate these aspects in 37 hospitals in 7 Spanish autonomous communities, in response to the call for research projects by the Ministry of Science and Innovation Research Program on Influenza A (H1N1) in Spain. For each confirmed hospitalized case of pandemic influenza, 1 confirmed outpatient case and 3 controls (2 hospitalized and 1 outpatient) were selected. Demographic variables, underlying medical conditions, use of antiviral agents, vaccines received and hygiene habits were collected for all cases and controls. In hospitalized cases, information on antiviral therapy and disease progression was collected. A total of 3750 patients were recruited by October 2010. Data cleansing and the recovery of variables is now underway. The involvement of the Public Health Directorate has been instrumental in adapting the project to the evolution of the pandemic.

Keywords : Effectiveness; Influenza vaccines; Personal hygiene; Case-control studies; Streptococcus pneumoniae.

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