ARCHIVED - CLARIFICATION
PREVENTION OF PERTUSSIS IN ADOLESCENTS AND ADULTS
On page 6, under Recommended Usage, section Adolescents, this statement refers to a published study:
"Alternatively, a dose of the combined dTap can be safely used. Limited data based on adults who received two doses of dTap one month apart showed no increase in adverse reactions(33)."
In fact, the referenced study included adults who received one dose of dTap followed one month later by monovalent ap vaccine. Therefore, there are no clinical data describing the safety of two doses of dTap given shortly apart.
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