Group

pH

Day of treatment

2

4

6

8

10

12

14

16

18

20

22

24

I

7

1

1

1

1

1

1

Infection

II

-

-

-

-

-

-

-

-

-

-

-

-

-

III

6

1

1

1

2

2

2

3

3

3

4

4

4

IV

10

1

2

3

4

5

V

6

1

1

1

1

2

2

2

3

3

3

4

4

VI

10

1

1

2

2

3

4

4

5

VII

5.5

1

1

1

2

2

2

3

3

3

3

4

4

VIII

10

1

1

2

2

3

4

5

IX

7

1

1

2

2

2

3

3

4

4

4

5

X

10

1

2

2

4

4

5

XI

10

2

3

5

XII

10

1

1

2

2

2

2

2

3

3

4

4