Effect of Maternal Influenza Vaccination during Pregnancy on Risk of Infant Influenza

This project has three major aims: 1) to examine whether influenza vaccination during pregnancy prevents influenza and other respiratory infections in infants aged 0 to 12 months, with a sub-aim to examine the effect of vaccine timing during pregnancy on these outcomes; 2) to evaluate the effect of maternal influenza vaccination during pregnancy on the effectiveness of influenza vaccine administered to infants; and 3) to examine whether influenza non-vaccination during pregnancy clusters geographically, and determine if those clusters are associated with influenza and influenza-like illnesses during pregnancy.

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