Women who recently gave birth and did not receive pertussis-containing vaccine during pregnancy are recommended to receive the vaccine as soon as possible
If a mother was not vaccinated during pregnancy and her last dose was more than 10 years ago, vaccination is recommended as soon as possible after birth and preferably before hospital discharge. If the mother was not vaccinated immediately after giving birth, there may still be some benefit in her being vaccinated at any time until the infant is 6 months of age. This is when the infant has received all infant doses of a pertussis-containing vaccine.
Vaccinating the mother after delivery reduces the likelihood of pertussis in the mother and indirectly protects the infant. However, infant protection will be substantially less than if the mother had been vaccinated in the 3rd trimester of pregnancy.19
