Fig. 2From: Vaccination in pregnancy against pertussis and seasonal influenza: key learnings and components from high-performing vaccine programmes in three countries: the United Kingdom, the United States and SpainEvolution of VCR for influenza (2011–2020) and Tdap (2013–2020) among pregnant women in the UK. A Influenza. B Tetanus, diphtheria, acellular pertussis (Tdap)Back to article page