TY - JOUR T1 - Tdap vaccination during pregnancy to reduce pertussis infection in young infants JF - Canadian Family Physician JO - Can Fam Physician SP - 497 LP - 498 VL - 59 IS - 5 AU - Jeremy N. Matlow AU - Anna Pupco AU - Pina Bozzo AU - Gideon Koren Y1 - 2013/05/01 UR - http://www.cfp.ca/content/59/5/497.abstract N2 - Question What is the basis for the new recommendations to vaccinate pregnant women against pertussis after the first trimester? Answer There have been outbreaks of epidemic proportions of pertussis, mostly among young infants who have not received sufficient passive immunity from their mothers. This strategy of vaccination during pregnancy aims at stopping these life-threatening epidemics. ER -