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Table 4 Nature and number of addiction systems according to ESBL type and replicon type identified in the recipient strains

From: Molecular epidemiology of extended-spectrum beta-lactamase-producing Escherichia coli in Tunisia and characterization of their virulence factors and plasmid addiction systems

  Addiction modules, n
ESBL type n pemKI a ccdAB hok-sok b pndAC vagCD c Total Meand
All 144 84 29 51 5 18 187 1.29
TEM-26 2 2 0 0 0 0 2  
SHV 39 12* 9 7* 0 3 31 0.79
SHV-2a 9 1      1  
SHV-12 30 11 9 7 0 3 30 1.00
CTX-M 103 70 20 44 5 15 154 1.46
CTX-M-14 15 6 0 0 2 0 8 0.53
CTX-M-15 88 64 20 44 3 15 143 1.62
Replicon type n pemKI e ccdAB f hok-sok g pndAC vagCD h Total Meani
A/C 5 0 0 0 0 0 0  
N 4 0 0 0 0 0 0  
L/M 14 9 0 0 0 0 9 0.64
IND 15 4 0 1 0 0 5 0.33
I1 5 2 0 0 5 2 9 1.80
HI2 16 0 0 0 0 2 2 0.12
F 85 69 29 50 0 14 162 1.90
SHV 12 10 9 6 0 1 26 2.16
CTX-M 73 59 20 44 0 13 136 1.87
  FII 49 40 1 32 0 1 74 1.51
   CTX-M-15 48      1   
  FII-FIB 4 2 1 2 0 0 5 1.25
   SHV-2a 1 0 0 0 0 0   
   CTX-M-15 3 2 1 2 0 0   
  FII-FIA-FIB 18 15 14 11 0 9 49 2.72
   SHV-12 3 3 2 3   0   
   CTX-M-15 15 12 12 9   9   
  FII-FIA 9 8 8 3 0 4 23 2.55
   SHV-12 5 5 4 1   1   
   CTX-M-15 4 3 4 2   3   
  FIA-FIB 5 4 5 2 0 0 11 2.20
   SHV-12 3 2 3 2     
   CTX-M15 2 2 2 0     
  1. apemKI: CTX-M vs SHV, p < 0.001; CTX-M-15 vs other ESBLs, p < 0.001.
  2. bhok-sok: CTX-M vs SHV, p < 0.01; CTX-M-15 vs other ESBLs, p < 0.001.
  3. cvagCD: CTX-M vs SHV, p =0.23; CTX-M-15 vs other ESBLs, p = 0.03.
  4. d Mean: CTX-M vs SHV, p <0.001; CTX-M-15 vs other ESBLs, p < 0.001.
  5. epemKI: IncF vs other plasmids, p < 0.001.
  6. fccdAB: IncF vs other plasmids, p < 0.001.
  7. ghok-sok: IncF vs other plasmids, p < 0.001.
  8. hvagCD: IncF vs other plasmids, p = 0.08, vagCD: IncF and IncI1 vs other plasmids, p = 0.01.
  9. i Mean: IncF vs other plasmids, p < 0.001.