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Table 5 Identification of the colonies isolated from breast milk and feces from breast- and formula-fed infants

From: Staphylococcus epidermidis: A differential trait of the fecal microbiota of breast-fed infants

 

Milk

Breast-fed infants

Formula-fed infants

Microorganisms

N° colonies (%)

N° colonies (%)

N° colonies (%)

1. Gram-positive bacteria:

   

Staphylococcus epidermidis

304 (62.16)

140 (26.36)

3 (1.57)

Other staphylococci

24 (4.91)

21 (3.95)

3 (1.57)

Enterococcus faecalis

21 (4.29)

69 (12.99)

84 (44.21)

Other enterococci

1 (0.20)

6 (1.12)

16 (8.42)

Streptococcus spp.

35 (7.15)

17 (3.20)

NDa

Bifidobacterium spp.

4 (0.81)

74 (13.93)

3 (1.58)

Lactobacillus spp.

2 (0.40)

6 (1.13)

15 (7.89)

Other Gram-positive bacteriab

22 (4.49)

31 (5.83)

ND

2. Gram-negative bacteria:

   

Acinetobacter johnsonii

5 (1.03)

ND

ND

Bacteroides spp.

ND

6 (1.13)

2 (1.05)

Burkholderia spp.

2 (0.40)

5 (0.95)

ND

Citrobacter spp.

7 (1.44)

4 (0.75)

5 (2.63)

Escherichia coli

37 (7.56)

94 (17.70)

50 (26.32)

Klebsiella spp.

7 (1.44)

23 (4.33)

3 (1.58)

Pantoea agglomerans

ND

ND

2 (1.05)

Enterobacter spp.

7 (1.44)

30 (5.64)

4 (2.10)

Other Gram-negative bacteriac

11 (2.25)

5 (0.95)

ND

Total number of colonies identified

489

531

190

  1. aND, not detected; bOther Gram-positive bacteria: Actinomyces spp., Kocuria spp., Propionibacterium spp.; cOther Gram-negative bacteria: Kluyvera cryocescens, Pseudomonas spp., Shigella spp.