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Table 1 Characteristics of Shiga toxin-producing E. coli O157 isolated from food and food-producing animals

From: Toxigenic properties and stx phage characterization of Escherichia coli O157 isolated from animal sources in a developing country setting

ID no. Source stx 2 a Stx2 titre cdt a TNPa NMa PCR Q933/Q21d Presence of stx2 subtypes Phage integration sitee
A B C D yehV wrbA
C8 Cow + -b + + + + + Q 21 stx 2a , stx 2d I I
C21 Cow + + + + + + Q 21 stx 2a , stx 2d I I
C35 Cow + + + + + + Q 21 stx 2a , stx 2d I I
C61 Cow + + + + + + Q 21 stx 2a , stx 2d I I
C62 Cow + 2 + + + + + Q 21 stx 2a , stx 2d I I
C96 Cow + + + + + + Q 21 stx 2a , stx 2d I I
C106 Cow + + + + + + Q 21 stx 2a , stx 2d I I
C111 Cow + + + + + + Q 21 stx 2a , stx 2d I I
C118 Cow + + + + + + Q 21 stx 2a , stx 2d I I
M2 Buffalo + + + + + + Q 21 stx 2a , stx 2d Variant-R I
M18 Buffalo + 64 + + + + + Q 21 stx 2a , stx 2d I I
M21 Buffalo + + + + + + Q 21 stx 2a , stx 2d I I
M29 Buffalo + + + + + + Q 21 stx 2a , stx 2d I I
M34 Buffalo + + + + + + Q 21 stx 2a , stx 2d I I
M42 Buffalo + + + + + Q 21 stx 2a , stx 2d I I
M52 Buffalo + + Q 21 stx 2a , stx 2d I I
M58 Buffalo + + + + + + Q 21 stx 2a , stx 2d I I
M64 Buffalo + 2 + + + + + Q 21 stx 2a , stx 2d I I
M98 Buffalo + + + + + + Q 21 stx 2a , stx 2d I I
M103 Buffalo + 2 + + + + + Q 21 stx 2a , stx 2d I I
M112 Buffalo + 8 + + + + + Q 21 stx 2a , stx 2d I I
M126 Buffalo + 2 + + + + + Q 21 stx 2a , stx 2d I I
M129 Buffalo + 32 + + + + + Q 21 stx 2a , stx 2d Variant-R I
M133 Buffalo + 128 + + + + + Q 21 stx 2a , stx 2d I I
M139 Buffalo + + + + + + Q 21 stx 2a , stx 2d I I
M143 Buffalo + 32 + + + + + Q 21 stx 2a , stx 2d I I
M163 Buffalo + 128 + + + + + Q 21 stx 2a , stx 2d I I
M168 Buffalo + 2 + + + + + Q 21 stx 2a , stx 2d I I
M171 Buffalo + 16 + + + + + Q 21 stx 2a , stx 2d Variant-R I
M173 Buffalo + 16 + + + + + Q 21 stx 2a , stx 2d I I
G10 Goat + 2 + + + + + Q 21 stx 2a , stx 2d I I
G51 Goat + 64 + + + + + Q 21 stx 2a , stx 2d Variant-R I
G56 Goat + + + + stx 2a , stx 2d O I
G61 Goat + 2 + + + + stx 2a , stx 2d Variant-R I
G63 Goat + 16 + + + + stx 2a , stx 2d Variant-R I
G67 Goat + + + + + + Q 21 stx 2a , stx 2d O I
G71 Goat + 128 + + + + stx 2a , stx 2d Variant-R I
G72 Goat + 2 + + + + + Q 21 stx 2a , stx 2d I I
G85 Goat + 2 + + + + + Q 21 stx 2a , stx 2d I I
G99 Goat + + + + + + Q 21 stx 2a , stx 2d I I
CM2 Beef + + + + + + Q 21 stx 2a , stx 2d I I
CM5 Beef + + + + + + Q 21 stx 2a , stx 2d O I
CM7 Beef + + + + + + Q 21 stx 2a , stx 2d O I
CM52 Beef + + + + + + Q 21 stx 2a , stx 2d I I
CM56 Beef + + + + stx 2a , stx 2d I I
MM27 Buf Meatc + + + + + + Q 21 stx 2a , stx 2d I I
MM28 Buf Meatc + + + + stx 2d I I
E. coli NCTC12079 Clinical isolate + 128 Q 933 NDf NDf
  1. aExamined by PCR method. +, positive; −, negative
  2. bStx2 toxin detection. -, not detected
  3. cBuffalo meat
  4. dPresence of either Q933 or Q21 gene. -, absence of both genes
  5. eI, intact; O, occupied. ‘Intact’ indicates detection of neither junction. ‘Variant-R’ indicates that the left junction between the bacteriophage and the chromosome was detected but the right junction was not detected. ‘Occupied’ indicates bilateral detection of that integration site
  6. fNot Done