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Table 1 Results of PCR analysis of virulence genes (stx 1, stx 2 and eae) detected in samples from children, staff and close contacts of a day-care centre, Norway 2009

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

PCR results Children attending day-care centre (n = 61) Staff
(n = 14)
Close contacts (n = 74) Total
(n = 149)
Pure culture     
   STEC (stx 1+eae) 16a, b - - 16
   STEC (stx 1, stx 2+eae) 1 - 1 2
   aEPEC (eae) 13b 2 - 15
Mixed culture only     
   stx 1+eae 1 - 2 3
   stx 2+eae 1 - - 1
   eae only 11 - 3 14
Total 43 2 6 51
  1. a Cases
  2. b For one case in whom both STEC and aEPEC was detected, only the STEC isolate is recorded in the table.