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Table 2 Distribution of Enterobacteriaceae and associated ESBL and AmpC β- lactamases in Neonates

From: Community acquisition of β-lactamase producing Enterobacteriaceae in neonatal gut

  Total Day 1 Day 21 Day 60
(N = 75) (N = 75) (N = 75)
No. (%) No. (%) No. (%)
Babies colonized with a least one species   49 (65.3) 48 (64) 53 (70.6)
No of babies colonized with at least one ESBL producing isolate   7/49 (14.3) 13/48 (27.1) 22/53 (41.5)*
Total Enterobacteriaceae strains # 267 79 88 100
E.coli 219 69 (87.3) 67 (76.1) 83 (83)
Klebsiella pneumoniae 27 3 (3.8) 13 (14.8) 11 (11)
Enterobacter sp 14 2 (2.5) 7 (8) 5 (5)
Citrobacter sp 5 4 (5.1) 0 1 (1)
Salmonella. Typhi 2 1 (1.3) 1(1.1) 0
Total ESBL 55 (20.6) 7 (8.9) 17 (19.3) 31 (31)**
Total AmpC (N = 39) 53 (19.9) 16 (20.3) 12 (13.6) 25 (25)***
Co-Production of ESBL and AmpC 30 (11.2) 5 (6.3) 9 (10.2) 16 (16)****
  1. Note: Data represents Enterobacteriaceae isolates from gut of 75 healthy Low birth weight (LBW) neonates on Day 1, 21, 60 of birth.
  2. All Figures in parentheses represent percentages.
  3. # Some babies had more than one morphologically and biochemically distinct isolates.
  4. *p value 0.005 **p value 0.001 ***p value 0.2 ****p value 0.05 when compared to Day 1.