Abstract

OLALLA, Julián  and  GRUPO DE TRABAJO PARA EL ESTUDIO MARBEGRIP et al. Self-reported cases of influenza among Spanish healthcare workers during the 2009 influenza A(H1N1) pandemic. Gac Sanit [online]. 2013, vol.27, n.2, pp.167-170. ISSN 0213-9111.  https://dx.doi.org/10.1016/j.gaceta.2012.01.016.

Objectives: To describe the prevalence of influenza-like syndrome in winter 2009 and the factors associated with its occurrence. Methods: A cross-sectional study was carried out in 18 hospitals in Spain. Volunteers completed a health questionnaire in which they reported the occurrence of influenza-like syndrome and vaccination and demographic status. Results: A total of 1,289 healthcare workers participated. Of these, 72 (5.6%) reported influenza in their family, 195 (15.1%) had been vaccinated against the A/California/7/2009/H1N1 virus and 75 (5.8%, 95%CI: 4.5-7.1%) had been diagnosed with influenza like-syndrome. There were differences among regions. In logistic regression analysis, the following factors were associated with a higher prevalence of influenza-like syndrome: working in Madrid (OR=8.31, 95%CI: 1.05-65.39), the occurrence of cases of influenza in the family (OR=2.84, 95%CI: 1.41-5.73) and not having been vaccinated against influenza A (H1N1) (OR=2.68, 95% CI: 1.05-6.82). Conclusions: Differences in the prevalence of influenza-like syndrome were due to the occurrence of familiar cases and region. Vaccination against influenza A (H1N1) was associated with a lower prevalence of the disease.

Keywords : Healthcare workers; Influenza A (H1N1) 2009; Vaccination.

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