Table 4 Distribution of single and multiple bacterial and viral agents detected in 167 adults with an etiologically established diagnosis of community-acquired pneumonia

Total

Only one

Plus other bacterium

Plus virus ^a

Plus virus and other bacterium

N (%)

Streptococcus pneumoniae

37

8

29

7

81 (49)

Bordetella pertussis

2

4

4

5

15 (9)

Haemophilus influenzae

2

5

5

2

14 (8)

Mycoplasma pneumoniae

7

3

10 (6)

Chlamydophila pneumoniae

5

1

1

7 (4)

Legionella pneumophila

2

3

2

7 (4)

Enterobacteriaceae

1

3

2

6 (4)

Moraxella catarrhalis

2

1

2

5 (3)

Miscellaneous ^b

1

1

1

3 (2)

Haemophilus parainfluenzae

1

1

2 (1)

Subtotal cases with bacteria

60

126 (75)^c

Total

Only one

Plus other virus

Plus bacterium ^a

Plus bacterium and other virus

N (%)

Influenza viruses

15^d

2

21

2

40 (24)

Rhinovirus

12

2

15

3

32 (19)

Parainfluenza viruses

3

4

1

8 (5)

Respiratory syncytial virus

3

2

2

7 (4)

Metapneumovirus

3

3

1

7 (4)

Enterovirus

2

1

2

5 (3)

Adenovirus

1

1 (0.6)

Subtotal cases with viruses

39

92 (55)^c