Clinical symptoms of B pertussis infection in 81 pertussis vaccinated* children and 35 unvaccinated children
| B pertussis cases (n=116) | |||
|---|---|---|---|
| B pertussis vaccinated (n=81) | B pertussis unvaccinated (n=35) | p value | |
| *Pertussis vaccinated with either three (n=9) or four doses (n=72) of the following vaccines: wcP vaccine (n= 8); acP vaccine (n=60); both wcP and acP vaccine (usually three wcP doses followed by an acp dose; n=13). | |||
| Cough >21 days | 74 (91%) | 35 (100%) | 0.1038 |
| Paroxysmal cough | 54 (67%) | 33 (94%) | 0.0023 |
| Paroxysm >21 days | 33 (41%) | 29 (83%) | 0.0001 |
| Whooping | 38 (47%) | 25 (71%) | 0.024 |
| Whooping >21 days | 11 (14%) | 15 (43%) | 0.0019 |
| Vomiting | 32 (40%) | 26 (74%) | 0.0012 |
| Vomiting >21 days | 3 (4%) | 6 (17%) | 0.0182 |