Pertussis Vaccine Failure is not Just Modern but Historical: Vaccine has Never Been Effective Posted on 19/02/2013 by Prem ManasviJuly 3, 2013 https://healthimpactnews.com/2013/pertussis-vaccine-failure-is-not-just-modern-but-historical-vaccine-has-never-been-effective/ [sam id=2 codes=’true’] Go back to: Vaccination – A Controversial Medical Science Topic