COVID-19 vaccine hesitancy among pregnant and postpartum Kenyan women

Objective: The authors evaluated factors contributing to coronavirus disease 2019 (COVID-19) vaccine hesitancy among pregnant and postpartum women to inform vaccine scale-up strategies.

Methods: This observational study utilized data from pregnant and postpartum women attending four public maternal child health (MCH) clinics in Western Kenya. From October 2020 to July 2022, nurses assessed COVID-19 vaccine hesitancy, defined as reporting "unlikely" or "very unlikely" to the question, "If a vaccine for COVID-19 were available today, what is the likelihood that you would get vaccinated?"

Results: Among 1023 women (235 pregnant, 788 postpartum), 20% reported worsened MCH care during the pandemic and most (92%) perceived themselves or family members to be at risk for COVID-19, yet 54% of women reported COVID-19 vaccine hesitancy. Vaccine hesitancy was more frequent among women reporting worsened MCH care (P < 0.001) since the pandemic and those who did not trust the government as a source of COVID-19 information (P = 0.016). Over the 2-year period, willingness to receive the vaccine almost doubled (38% to 71%, P < 0.001).

Conclusions: Our findings suggest that sustaining access to quality MCH services may decrease COVID-19 vaccine hesitancy. Willingness to receive the vaccine doubled over the 2-year period in our cohort, suggesting increased trust for use and acceptance in the unique context of the pregnancy/postpartum period.