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Table 4 AST profiles as a measure of phenotypic similarities between pairs of isolates of MDR-GNB isolated from blood and MDR-GNB isolated from rectal, bed and mothers’ hands swabs

From: Bacteremia in critical care units at Bugando Medical Centre, Mwanza, Tanzania: the role of colonization and contaminated cots and mothers’ hands in cross-transmission of multidrug resistant Gram-negative bacteria

Phenotypic pairs

ID

Isolates

Sources

Comparisons and interpretations of inhibition zones (mm)

SXT

TE

CN

CIP

MEM

CT

Blood vs rectal colonization

11.9% (7/59)

068CL

K. pneumoniae

Blood

6 (R)

20 (S)

10 (R)

34 (S)

30 (S)

13 (I)

Rectal

6 (R)

20 (S)

10 (R)

32 (S)

30 (S)

12 (I)

233CL

E. aerogenes

Blood

6 (R)

8 (R)

15 (S)

20 (I)

32 (S)

13 (I)

Rectal

6 (R)

12 (I)

17 (S)

22 (S)

28 (S)

13 (I)

275CL

K. pneumoniae

Blood

6 (R)

24 (S)

14 (I)

28 (S)

28 (S)

13 (I)

Rectal

6 (R)

22 (S)

14 (I)

28 (S)

32 (S)

14 (S)

285CL

K. pneumoniae

Blood

6 (R)

6 (R)

6 (R)

17 (I)

30 (S)

15 (S)

Rectal

6 (R)

6 (R)

8 (R)

20 (I)

30 (S)

15 (S)

185CL

Acinetobacter spp

Blood

22 (S)

18 (S)

20 (S)

22 (S)

32 (S)

13 (I)

Rectal

6 (R)

6 (R)

10 (R)

10 (R)

23 (S)

14 (S)

083CL

K. pneumoniae

Blood

6 (R)

20 (S)

10 (R)

34 (S)

30 (S)

13 (I)

Rectal

6 (R)

20 (S)

8 (R)

32 (S)

30 (S)

11 (R)

282CL

K. pneumoniae

Blood

6 (R)

22 (S)

15 (S)

27 (S)

30 (S)

16 (S)

Rectal

6 (R)

23 (S)

16 (S)

27 (S)

28 (S)

16 (S)

Blood vs bed contamination

8.5% (5/59)

249CL

K. pneumoniae

Blood

6 (R)

23 (S)

15 (S)

26 (S)

12 (R)

11 (R)

Bed

6 (R)

20 (S)

14 (I)

27 (S)

29 (S)

12 (I)

241CL

Acinetobacter spp

Blood

6 (R)

6 (R)

16 (S)

6 (R)

10 (R)

13 (I)

Bed

6 (R)

6 (R)

10 (R)

13 (R)

8 (R)

14 (S)

187CL

Acinetobacter spp

Blood

6 (R)

8 (R)

15 (S)

25 (S)

27 (S)

13 (I)

Bed

6 (R)

6 (R)

24 (S)

6 (R)

6 (R)

13 (I)

242CL

Acinetobacter spp

Blood

24 (S)

18 (S)

14 (I)

30 (S)

28 (S)

14 (S)

Bed

6 (R)

6 (R)

14 (I)

28 (S)

6 (R)

13 (I)

243CL

Acinetobacter spp

Blood

6 (R)

25 (S)

24 (S)

30 (S)

15 (I)

13 (I)

Bed

6 (R)

6 (R)

15 (S)

27 (S)

6 (R)

15 (S)

Blood vs mother contaminated hand

6.8% (4/59)

068CL

K. pneumoniae

Blood

6 (R)

20 (S)

10 (R)

34 (S)

30 (S)

13 (I)

Hand

6 (R)

11 (R)

6 (R)

22 (S)

26 (S)

15 (S)

083CL

K. pneumoniae

Blood

6 (R)

12 (I)

12 (R)

32 (S)

30 (S)

13 (I)

Hand

6 (R)

22 (S)

6 (R)

28 (S)

28 (S)

14 (S)

186CL

K. pneumoniae

Blood

6 (R)

18 (S)

10 (R)

28 (S)

28 (S)

14 (S)

Hand

6 (R)

6 (R)

8 (R)

17 (I)

28 (S)

12 (I)

294CL

K. pneumoniae

Blood

6 (R)

6 (R)

6 (R)

32 (S)

32 (S)

14 (S)

Hand

6 (R)

22 (S)

6 (R)

15 (R)

28 (S)

16 (S)

  1. Notes: SXT trimethoprim-sulfamethoxazole, TE tetracycline, CN gentamicin, CIP ciprofloxacin, MEM meropenem and CT colistin sulfate, S sensitive, I intermediate and R resistant