“…[160][161][162] Currently, no RCT data support the effectiveness of pertussis vaccination in HCWs to prevent outbreaks and infant morbidity/mortality. [160][161][162][163] Furthermore, there are no approved protection correlates for pertussis vaccines. 164 However, recent modeling approaches are confirming that booster vaccination of pediatric HCWs is an effective intervention to reduce the risk of pertussis transmission 165 and is cost-effective or cost-saving, even at low coverage levels.…”