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Table 1 Detected species and their frequency during the first 2 years of the infant

From: Culture-dependent screening of endospore-forming clostridia in infant feces

By MALDI-TOF MS identified as

Number of identified bacterial isolates

Age in months

Family/Species

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

T

Clostridiaceae

                         

Clostridium baratii

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

2

2

Clostridium butyricum

8

-

-

3

14

1

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

2

-

28

Clostridium disporicum

-

-

-

-

-

-

-

-

-

-

-

-

1

-

-

4

-

-

-

-

-

-

-

-

5

Clostridium jeddahense

-

-

5

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

5

Clostridium paraputrificum

-

-

1

1

-

10

17

15

10

-

8

3

-

-

1

-

-

-

-

-

-

-

-

-

66

Clostridium perfringens

26

19

-

-

11

-

-

2

-

-

-

-

11

10

2

-

-

9

-

-

8

-

12

3

113

Clostridium ramosum

-

-

-

-

-

3

-

3

-

10

3

-

-

-

-

-

-

-

-

-

-

-

-

2

21

Clostridium tertium

-

3

1

18

-

12

4

-

13

-

-

-

-

-

-

-

-

-

-

-

-

-

-

1

52

Paraclostridium bifermentans

-

-

-

-

-

-

-

-

-

-

-

-

1

-

-

-

-

-

-

-

-

-

-

2

3

Lachnospiraceae

                         

Clostridium symbiosum

-

-

-

-

-

-

-

-

-

-

-

-

-

-

4

5

3

6

6

2

1

6

5

2

40

Eisenbergiella tayi

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

1

-

-

-

3

-

4

Enterocloster aldenensis

-

-

-

-

-

-

-

-

-

1

-

-

-

-

-

-

-

-

-

-

-

-

-

-

1

Enterocloster bolteae

-

-

-

-

-

-

-

-

-

-

-

-

1

-

-

-

-

-

-

-

-

-

-

-

1

Ruminococcus gnavus

-

-

-

-

-

-

-

6

-

-

-

5

-

-

-

8

1

-

1

-

-

-

1

-

22

Oscillospiraceae

                         

Flavonifractor plautii

-

2

1

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

3

Peptostreptococcaceae

                         

Clostridioides difficile

-

4

7

2

-

3

3

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

19

Eubacterium tenue

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

3

8

11

10

7

5

3

-

47

Intestinibacter bartlettii

-

-

-

-

-

-

-

-

-

-

-

-

1

1

2

-

-

-

-

-

-

-

-

-

4

Paeniclostridium sordellii

-

-

-

-

1

-

-

-

-

-

-

-

-

-

1

-

-

-

-

-

-

2

1

-

5

Other detected taxa*

-

2

5

4

-

-

3

1

-

-

1

3

3

2

8

2

9

-

-

7

1

3

-

2

56

Co-cultures

-

5

13

7

1

6

3

3

6

9

14

9

5

9

12

7

9

3

3

8

5

4

4

7

152

Unidentified‡

1

1

2

2

-

1

1

1

-

9

16

14

7

3

2

15

3

5

23

14

11

9

6

14

160

Total isolates

35

36

35

37

27

33

31

34

29

29

42

34

30

25

32

41

28

31

45

41

33

29

37

35

809

  1. T = Total number of isolates for the species/group
  2. *=Bacillus cereus (n = 6), Bacillus licheniformis (n = 2), Coprobacillus cateniformis (n = 1), Escherichia coli (n = 4), Enterococcus faecium (n = 8), Limosilactobacillus reuteri (n = 10), Sphingomonas sp. (n = 1), Bifidobacterium animalis (n = 1)
  3. ‡= In the unidentified bacteria are also included species belong to Blautia wexlerae, Clostridium perfringens, Clostridium disporicum, Clostridium ramosum, Flavonifractor plautii, Intestinibacter bartlettii, Ruminococcus albus, and Ruminococcus gnavus according to consecutive 16S rRNA gene sequencing results