Table 6.

Relationship of Laboratory Confirmation of B pertussis orB parapertussis Infection in DT Recipients to Duration of Cough Illness

Duration (days)No. With Cough
No. (%) With B pertussis
or B parapertussis*
No. With PWV+
No. (%) With PWV
andB pertussis
or B parapertussis Infection
≥7 328130 (40)232113 (49)
≥14304127 (42)216110 (51)
≥21250114 (46)183104 (57)
≥28203102 (50)15895 (60)
≥3516184 (52)13280 (61)
≥4213070 (54)10868 (63)
≥499456 (60)8055 (69)
  • * Isolation of either B pertussis or B parapertussis or serologic evidence of infection with either organism or household contact with a culture confirmed illness due to either organism.

  • Paroxysms, whoop, or posttussive vomiting.