poilkj -“Similarly, the DTP shot was a weakened live vaccine and had to be changed out, like the oral polio, for the inactivated Tdap. This creates the same problem, symptoms in the vaccinated individual are absent, but they can still transmit the virus to infants and other susceptible individuals.”
Another Anti-vaxxer Lie!
That’s Not why they switched DTP to TDaP.
From NVIC:
“DPT vaccine is a combination of three inactivated bacterial vaccines: diphtheria, pertussis and tetanus. There are many different forms and combinations of these vaccines licensed for use in the United States.”