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What is the minimum interval between a dose of Td and a dose of Tdap during a pertussis outbreak if the patient is a contact of a confirmed case of pertussis?

April 26, 2017contact dose interval minimum outbreak patient pertussis TD tdap

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What is the minimum interval between a dose of Td and a dose of Tdap during a pertussis outbreak if the patient is a contact of a confirmed case of pertussis?

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In this situation, there is no minimum interval. There is an emphasis on preventing pertussis infection. While an outbreak is ongoing and Tdap is indicated, there is no interval since the last dose of Td. The risk of a sore arm is outweighed by the benefit of protection against pertussis.