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. 2016 Jun 2;2016(6):CD005187. doi: 10.1002/14651858.CD005187.pub5

1. Potter 1997.

  SVPV SVP0 S0PV S0P0
Suspected viral illness 24 58 75 59
Influenza‐like illness 2 20 19 23
Pneumonia 7 14 16 18
Deaths from pneumonia 10 15 24 23
All deaths 25 25 56 42

S0P0: staff and patients not vaccinated
 S0PV: staff not vaccinated, patients vaccinated
 SVPV: staff and patients vaccinated
 SVP0: staff vaccinated and patients not vaccinated