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Published on: December 4, 2015
Pandemic 2009 H1N1 influenza among health care workers
Renata D Lobo1, Maura S Oliveira, Cilmara P Garcia
1Infection Control Department, Hospital das Clínicas, University of São Paulo, Brazil. loborenata@gmail.com
Abstract:
To evaluate factors associated with pandemic influenza among health care workers (HCWs), a case-case-control study was conducted with 52 confirmed cases, 120 influenza-negative cases, and 102 controls. Comorbidities (odds ratio [OR], 19.05; 95% confidence interval [95% CI]: 4.75-76.41), male sex (OR, 5.11; 95% CI: 1.80-14.46), and being a physician (OR, 8.58; 95% CI: 2.52-29.27) were independent risk factors for pandemic influenza infection among HCWs. Contact with symptomatic coworker or social contact was protective (OR, 0.11; 95% CI: 0.04-0.29). To our knowledge, this is the first study of factors associated with acquiring influenza involving HCW in nonsevere cases.
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