Background: Maternal influenza immunisation can reduce morbidity and mortality associated with influenza infection in pregnant women and young infants. We aimed to determine the vaccine efficacy of maternal influenza immunisation against maternal and infant PCR-confirmed influenza, duration of protection, and the effect of gestational age at vaccination on vaccine efficacy, birth outcomes, and infant growth up to 6 months of age.

Author List: Omer SB, Clark DR, Madhi SA, Tapia MD, Nunes MC, Cutland CL, Simões EAF, Aqil AR, Katz J, Tielsch JM, Steinhoff MC, Wairagkar N; BMGF Supported Maternal Influenza Immunization Trials Investigators Group.

Journal Name: Lancet Respir Med. 2020 Jun;8(6):597-608. doi: 10.1016/S2213-2600(19)30479-5. PMID: 32526188; PMCID: PMC7284303.