Due to an increase in pertussis related deaths in newborns, the Centers for Disease Control and Prevention recommends vaccination in the form of Tdap in each pregnancy, regardless of prior vaccination history. “Optimal timing for Tdap administration is between 27 and 36 weeks gestation. For women not previously vaccinated with Tdap, if Tdap is not administered during pregnancy, Tdap should be administered immediately postpartum”. For more information, please visit
http://www.cdc.gov/vaccines/vpd-vac/pertussis/tdap-pregnancy-hcp.htm