Table 1 The isolated bacteria in NPA specimens of patients with respiratory tract infection

Gram positive cocci

Streptococcus pneumoniae

25/90 (27.7%)

57/90(63.3%)

Staphylococcus aureus

32/90 (35.5%)

Gram negative bacilli

Klebsiella pneumoniae

15/90 (16.6%)

33/90(36.6%)

E. coli

10/90 (11.1%)

Pseudomonas aeruginosa

8/90 (8.8%)

Normal flora

33 (33%)

Total

100 (100%)