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Outbreaks of Influenza A Among Nonvaccinated Healthcare Workers: Implications for Resource-Limited Settings

  • Anucha Apisarnthanarak (a1), Pilaipan Puthavathana (a2), Rungrueng Kitphati (a3), Prasert Auewarakul (a2) and Linda M. Mundy (a4)...

We identified 3 outbreaks of influenza A (attack rates, 18%–24%) among Thai healthcare workers in intensive care units. All outbreaks were epidemiologically linked to an index patient with pneumonia due to influenza A virus (subtype H3N2). The investigations of these outbreaks incurred costs that exceeded the estimated costs of healthcare worker influenza vaccination by more than 10-fold.

Corresponding author
Division of Infectious Diseases, Thammasart University Hospital, Pratumthani, Thailand12120 (
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Infection Control & Hospital Epidemiology
  • ISSN: 0899-823X
  • EISSN: 1559-6834
  • URL: /core/journals/infection-control-and-hospital-epidemiology
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