Germs

Empyema

Abscess

Association

Total

Negative test

7

4

6

24

Positif test

4

1

1

10

Cocci Gram +

- Streptococcus

2

2

1

5

-Staphylococcus

1

1

1

3

Bacilles Gram -

1

1

Pseudomonas

1

1