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Reintroduction of influenza A to a nursing building

P J Drinka1, S Gravenstein, P Krause

  • 1Wisconsin Veterans Home, King 54946-0620, USA.

Infection Control and Hospital Epidemiology
|November 23, 2000
PubMed

Insights

An influenza A outbreak occurred in a Wisconsin veterans' facility, infecting 154 residents over 121 days. Continuous surveillance and prophylaxis plans are crucial to manage potential reintroductions of the virus.

Area of Science:

  • Epidemiology
  • Infectious Diseases
  • Public Health

Background:

  • Influenza A outbreaks pose significant risks in congregate living settings.
  • Veterans' facilities require specific public health surveillance strategies.

Purpose of the Study:

  • To document and analyze an influenza A outbreak in a Wisconsin veterans' facility.
  • To inform public health strategies for managing influenza in long-term care settings.

Main Methods:

  • Retrospective analysis of influenza A cases over a 121-day period.
  • Case data collection from a four-building veterans' facility.
  • Isolation of influenza A virus from residents.

Main Results:

  • 154 out of 721 residents were infected with influenza A.
  • The outbreak spanned 121 days, with varying case numbers and isolate-free periods across buildings.
  • Building A experienced a delayed surge in cases after an initial period with no isolates.

Conclusions:

  • Influenza A can be reintroduced into nursing facilities, necessitating ongoing vigilance.
  • Continuous surveillance and adaptable prophylaxis plans are essential during community-wide influenza activity.

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