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Table 2 Colonization Study: Comparison of antimicrobial resistance and a colonization success of E. coli clones from the rectal content of 5 piglets.

From: Antimicrobial resistances do not affect colonization parameters of intestinal E. coli in a small piglet group

  resistance to No. of antimicrobial agents per clone
  0 1 2 3 4 5 6 7 < 3 3 ≤ 0 1 ≤
number of clones n = 14 n = 6 n = 8 n = 8 n = 3 n = 3 n = 1 n = 1 n = 28 n = 16 n = 14 n = 30
maximum numbers in one sample a 1 (1/20)* 2 (1/20) 1.5 (1/15) 2 (1/19) 10 (5/18) 2 (1/9) 1 13 1.5 (1/20) 3.5 (1/19) 1 (1/20) 2 (1/20)
total numbers in all samples b 2 (1/79) 3 (1/106) 3 (1/16) 3 (1/199) 26 (5/41) 2 (1/55) 1 20 2 (1/106) 4.5 (1/199) 2 (1/79) 4 (1/199)
numbers of piglets c 1.5 (1/4) 1.5 (1/5) 1.5 (1/2) 1.5 (1/5) 4 (1/5) 1 (1/5) 1 3 1.5 (1/5) 1.5 (1/5) 1.5 (1/4) 1.5 (1/5)
time points d 1 (1/5) 1.5 (1/4) 1.5 (1/2) 1.5 (1/8) 3 (1/5) 1 (1/6) 1 3 1 (1/5) 1.5 (1/8) 1 (1/5) 1.5 (1/8)
  1. a maximum numbers of isolates of one clone in one sample, as we included 20 isolates of one sample there was a theoretical range between 0 and 20 isolates per clone
  2. b total numbers including all isolates from all samples of one clone, as we included 800 isolates from all piglets over the whole eight week period and detected 44 clones a theoretical range between 1 and 757.
  3. c numbers of colonized piglets with a specific clone, as we included five piglets a theoretical range between 0 and 5
  4. d numbers of time points of the detection of a specific clone, as we sampled over an eight week period a theoretical range between 1 and 8
  5. * median (min/max)