Table 2 Microbiological findings of 174 patients with severe CAP

S. pneumoniae

40 (23)

19 (41.3)

-

21 (46.7)

-

Other streptococci

6 (3.4)

2 (4.3)

-

4 (8.9)

-

S. aureus

12 (6.9)

6 (13)

-

6 (13.3)

-

L. pneumophila

8 (4.6)

7 (15.2)

-

1 (2.2)

-

C. pneumoniae – M. pneumoniae

6 (3.4)

5 (10.9)

-

1 (2.2)

-

H. influenzae

13 (7.5)

5 (10.9)

-

8 (17.8)

-

Enterobacteriaceae species

11 (6.3)

7 (15.2)

-

4 (8.9)

-

P. aeruginosa

7 (4)

2 (4.3)

-

5 (11.1)

-

Other bacteria

3 (1.7)

1 (2.2)

-

2 (4.4)

-

Mixed flora

10 (5.7)

6 (13)

-

4 (8.9)

-

Picornavirus (rhinovirus)^a

22 (12.6)

-

7 (13.2)

15 (33.3)

-

Influenza A

32 (18.4)

-

19 (35.8)

13 (28.9)

-

Influenza B

6 (3.4)

-

4 (7.5)

2 (4.4)

-

Parainfluenza

3 (1.7)

-

2 (3.8)

1 (2.2)

-

Respiratory syncytial virus

9 (5.2)

-

5 (9.4)

4 (8.9)

-

Human metapneumovirus

12 (6.9)

-

6 (11.3)

6 (13.3)

-

Coronavirus

14 (8)

-

7 (13.2)

7 (15.6)

-

Adenovirus

3 (1.7)

-

2 (3.8)

1 (2.2)

-

Bocavirus

1 (0.6)

-

1 (1.9)

0 (0)

-

Cytomegalovirus

1 (0.6)

-

1 (1.9)

0 (0)

-

Herpes simplex virus

3 (1.7)

-

1 (1.9)

2 (4.4)

-

Varicella zoster virus

1 (0.6)

-

1 (1.9)

0 (0)

-