citation?
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I'm not sure you are correct about "annual boosters" for pertussis
@GidMK but can't see schedule on phone cc@TheCogitoBlog@MRY_ivy -
True, the efficacy increases with age, in infants it's once every few months then once 18mo and 4yo
@TheCogitoBlog@MRY_ivy
End of conversation
New conversation -
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& remember
@GidMK immunity from surviving#pertussis also short-lived. cc@TheCogitoBlog@MRY_ivyThanks. Twitter will use this to make your timeline better. UndoUndo
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