Typically starts off very non-specific and very mild with a runny nose... when the cough starts,
So for infants under two (months old), we don't give the pertussis vaccine until babies are two months old...
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Typically starts off very non-specific and very mild with a runny nose... when the cough starts,
So for infants under two (months old), we don't give the pertussis vaccine until babies are two months old...