Table 1.

Microbiological findings for 200 patients with signs and symptoms of the common cold

Organism or infectionNo. (%) of patients positive by:Total no. of patients (%)
Virus antigen detectionVirus cultureRhinovirus PCRSerology
Rhinovirus80 (40)103 (51.5)105 (52.5)
Influenza A virus6 (3)3 (1.5)9 (4.5)10 (5)
Influenza B virus2 (1)1 (0.5)1 (0.5)2 (1)
Adenovirus1 (0.5)1 (0.5)2 (1)
Parainfluenza virus type 11 (0.5)1 (0.5)1 (0.5)
Parainfluenza virus type 22 (1)2 (1)
Parainfluenza virus type 33 (1.5)3 (1.5)3 (1.5)
Parainfluenza virus type 1 or 35 (2.5)1 (0.5)
RSV4 (2)3 (1.5)3 (1.5)4 (2)
Enterovirus1 (0.5)1 (0.5)
Coronavirus OC437 (3.5)7 (3.5)
Coronavirus 229E10 (5)10 (5)
C. pneumoniae 4 (2)4 (2)
M. pneumoniae 1 (0.5)1 (0.5)
S. pneumoniae 1 (0.5)1 (0.5)
H. influenzae 1 (0.5)1 (0.5)
M. catarrhalis 0 
Double viral infection10 (5)
Viral and bacterial infections6 (3)
Total17 (8.5)91 (45.5)103 (51.5)46 (23)139 (69.5)