Protective Efficacy/Effectiveness of Whole Cell Pertussis Vaccines (wP) in Immunocompetent Infants and Children

Population : Immunocompetent Infants and children

Intervention : Whole Cell Pertussis Vaccines

Comparison : No vaccine or control

Outcome : Severe Pertussis 

In immunocompetent individuals, what is the scientific evidence that a primary series of wP vaccine induces protection against severe pertussis in infants?