Table 3.

Serology and Combined Diagnostic Confirmative Criteria Indicative ofB pertussis Infection in Comparison With PCR Results in Study Subjects

Confirmative Criteria
PCR ResultSerology Positive for B pertussisInfection
No. (%)
Serology Negative for B pertussisInfection
No. (%)
Any Confirmative Criterion Positive forB pertussis Infection*
No. (%)
All Confirmative Criteria Negative for B pertussis Infection
No. (%)
Positive35 (61)26 (12)43 (60)21 (10)
3+ positive24 (42)6 (3)29 (41)4 (2)
Negative22 (39)199 (88)28 (40)187 (90)
Total57 (100)225 (100)71 (100)208 (100)
  • * Serology and/or culture and/or household contact positive.

  • Serology and culture and household contact negative.