Barriers to influenza vaccination during pregnancy in France: A national population-based study.

Background: Despite French national recommendations since 2012 that all pregnant women be vaccinated against influenza, in 2021 this vaccine coverage is low - around 30 % - in France.

Objectives: To identify barriers to influenza vaccination during pregnancy by assessing how often women were offered this vaccination and how often they accepted it.

Study Design: We used data from the French national perinatal survey (ENP), which covered all births during one week in March 2021 (N = 12,614).