Dtap vaccine: Dtap vaccine is 95% effective in preventing all three diseasesthe immunity for diptheria lasts for full 10 years, it is little lower for pertusses and higher for tetanus.So a booster dose is needed every 10 years.
Answered 5/8/2012
5.9k views
Dtap vaccine: It is very effective, the immunity lasts for up to 10 years , but now it is recommended to get a booster shot every 5 years instead of 10. I hope that answers your question. Good luck.
Answered 9/15/2015
2.3k views
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