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Table 4 Pathogens isolated among community-acquired, hospitalized adult influenza patients with secondary bacterial pneumonia included in this study

From: Risk factors for in-hospital mortality and secondary bacterial pneumonia among hospitalized adult patients with community-acquired influenza: a large retrospective cohort study

Pathogen, n (%)

Total patients with secondary bacterial pneumonia (N = 25)

Total non-duplicated* strains (N = 35)

Blood culture (n = 6)

Sputum culture (n = 27)

Bronchoalveolar lavage fluid culture (n = 2)

Streptococcus pneumoniae

4 (16.0)

5 (14.3)

1 (16.7)

4 (14.8)

0

Pseudomonas aeruginosa

4 (16.0)

5 (14.3)

1 (16.7)

3 (11.1)

1 (50.0)

  CRPA

3 (12.0)

3 (8.6)

1 (16.7)

2 (7.4)

0

Acinetobacter baumannii

4 (16.0)

4 (11.4)

1 (16.7)

3 (11.1)

0

  CRAB

4 (16.0)

4 (11.4)

1 (16.7)

3 (11.1)

0

Staphylococcus aureus

3 (12.0)

3 (8.6)

1 (16.7)

2 (7.4)

0

Haemophilus influenzae

3 (12.0)

3 (8.6)

0

3 (11.1)

0

Burkholderia cepacia

2 (8.0)

3 (8.6)

0

2 (7.4)

1 (50.0)

Klebsiella pneumoniae

2 (8.0)

2 (5.7)

0

2 (7.4)

0

  CRKP

1 (4.0)

1 (2.9)

0

1 (3.7)

0

Escherichia coli

2 (8.0)

2 (5.7)

0

2 (7.4)

0

  EPEC

1 (4.0)

1 (2.9)

0

1 (3.7)

0

Stenotrophomonas maltophilia

2 (8.0)

2 (5.7)

0

2 (7.4)

0

Moraxella catarrhalis

2 (8.0)

2 (5.7)

0

2 (7.4)

0

Others

4 (20.0)

4 (11.4)

2 (33.3)a

2 (7.4)b

0

  1. CRPA Carbapenem-resistant Pseudomonas aeruginosa; CRAB Carbapenem-resistant Acinetobacter baumannii; CRKP Carbapenem-resistant Klebsiella pneumoniae; EPEC Extended spectrum β-lactamase (ESBL)–producing Escherichia coli
  2. *If multiple strains of the same bacterial species were obtained from the same specimen source of the same patient, only one strain would be counted
  3. aIncluding Staphylococcus warneri (n = 1) and Staphylococcus epidermidis (n = 1)
  4. bIncluding Klebsiella aerogenes (n = 1) and Candida albicans (n = 1)