Preterm infants are most vulnerable to pertussis. Whether they might benefit from maternal immunization is unknown. Extending our previous results in term neonates, this observational study demonstrates that second- rather than third-trimester maternal vaccination results in higher birth anti-pertussis toxin titers in preterm neonates.
Keywords: maternal antibodies; maternal immunization; neonates; pertussis; preterm.
© The Author 2017. Published by Oxford University Press for the Infectious Diseases Society of America.