“…Cocooning, the perinatal vaccination of close contacts of infants, including parents, siblings, grandparents, and other caregivers should prevent a substantial proportion of infant cases [23,25,26]. Effective vaccine delivery to this population can occur in the primary care office, maternity ward, pediatric offices, and in-hospital pharmacies [27][28][29]. Vaccinating pregnant women with Tdap in the third trimester, recommended by the ACIP since October 2012 [22], is another strategy which will protect both the mothers and the newborns from pertussis infection likely through passive antibody transfer.…”