Table 3.
Pertussis-related symptoms in relation to pathogen detected
| Pathogens | Group Ia (n = 38) | Group IIb (n = 21) | P c |
|---|---|---|---|
| Bordetella Pertussis | 17 | 0 | <0.005 |
| Other atypical bacteriad | 2 | 0 | NS |
| Human rhinoviruses | 16 | 4 | NS |
| Respiratory syncytial virus | 1 | 5 | 0.02 |
| Parainfluenza viruses | 2 | 3 | NS |
| Adenovirus | 6 | 1 | NS |
| Human coronavirus –229E | 1 | 0 | NS |
| Human metapneumovirus | 0 | 1 | NS |
| Mixed infections | 14 | 4 | NS |
| No infection | 7 | 11 | 0.01 |
aPatients that meet the clinical definition for suspected pertussis
bPatients that did not meet the clinical definition for suspected pertussis
cStatistical differences between Group I and Group II
d Mycoplasma pneumoniae (1) and Chlamydophila pneumoniae (1)
No influenza A&B virus, human coronavirus OC43, B. parapertussis or B. holmesii were detected