Do More Vaccinated or Unvaccinated Kids Get Pertussis?
Simple math helps show that more unvaccinated kids get sick, and they get more severe illness, during pertussis outbreaks.
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Can Vaccinated Children Be Asymptomatic Carriers of Pertussis?
What is the role of asymptomatic carriers in pertussis outbreaks?
Vaccine-Driven Resistance of Bacteria and Viruses
Vaccines are not causing an increase in vaccine-resistant bacteria or viruses and can actually help us fight the growing problem of antibiotic resistant bacteria.
Do Pertussis Vaccines Work Against Pertactin-Negative Pertussis Bacteria?
Pertactin-negative pertussis bacteria are not driving outbreaks of pertussis or whooping cough, and they have not become resistant to pertussis vaccines.