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Table 1 Count of monophyletic strains in the samples detected from 12 subjects and their mothers

From: Long-term colonization exceeding six years from early infancy of Bifidobacterium longum subsp. longum in human gut

Subject ID

Detection of the representative strainsa

Mother’s perinatal samples

Subject’s samples

Prenatal feces

Postnatal breast milk

Feces in early infancy

Feces in childhood

1st Sample

2nd Sample

7 days

30 days

Meconium

3 days

7 days

30 days

90 days

After weaningb

180 days

≈ 6 years

4

2

2

–

–

–

–

–

–

–

1

–

3

12

7

5

–

–

–

1

2

2

–

ns

–

2

13

3

3

–

–

–

–

–

–

–

1

3

3

16

5

3

–

–

1

3

5

3

4

ns

1

2

18

1

1

1

–

–

1

1

1

1

–

–

1

30

2

2

–

–

–

ns

–

–

1

1

–

1

38

3

1

–

–

–

1

3

2

–

–

–

1

44

1

–

–

1

–

–

1

–

–

1

–

1

48

–

1

–

1

–

ns

–

2

–

–

–

2

129

–

–

1

1

1

1

1

1

–

–

–

1

130

4

3

–

–

–

3

–

–

–

–

–

4

134

1

–

–

2

–

2

2

2

–

–

–

2

  1. ans, no sample was collected; −, no isolate was obtained
  2. bOne week after the introduction of solids