Influenza and COVID-19 vaccines in pregnancy: investigation on associated factors and HAPA theory

Infections caused by influenza and COVID-19 during pregnancy represent a current public health problem as there are multiple populations at risk of complications: pregnant women, fetus, and future unborn children. The anatomical and physiological remodulation characteristic of pregnancy is responsible for the high pathological burden related to respiratory infections. Co-administration of influenza and COVID-19 vaccines may be beneficial because these two respiratory viruses cocirculate during cold weather. The need to explore pregnant women’s attitudes toward co-administration of influenza and COVID-19 vaccines and to evaluate factors associated with vaccine decision-making led to the conduct of this study.