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Table 4 Attack rates and mean child age within day-care centre departments

From: Investigation of an Escherichia coli O145 outbreak in a child day-care centre - extensive sampling and characterization of eae- and stx 1-positive E. coli yields epidemiological and socioeconomic insight

  Department Total all departments
  1 2 3  
No. of children within department 14 22 25 61
Mean child age within department 1.5 2.9 3.8 3.0
No. of cases within department 7 4 5 16
Attack rate within department 0.50 0.18 0.20 0.26
  1. STEC O145 outbreak in child day-care centre Norway, 2009 (n = 16).