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Table 3 Attack rates (AR) in interviewed institutions in Røros (n = 11)

From: A large waterborne outbreak of campylobacteriosis in Norway: The need to focus on distribution system safety

Waterworks zone Institution Number of personnel Number of others* AR % staff AR % others* AR % total
RH kindergarten 1 2 14 0 0 0
  care centre 1 17 16 6 6 6
  nursing home 70 60 14 10 12
RL care centre 2 60 28 8 7 8
  hospital 95 24 13 0 10
  rehabilitation centre 61 60 8 12 10
  kindergarten 2 21 76 19 16 16
  kindergarten 3 13 44 0 23 18
  kindergarten 4 12 47 17 23 22
  after school care 17 145 35 21 22
  kindergarten 5 5 20 40 45 44
  1. AR: attack rate, RH: higher zone, RL: lower zone of Røros waterworks
  2. * others = residents or hospitalized or children