Durability of anti-spike antibodies in infants after maternal COVID-19 vaccination or natural infection
Methods| The study included individuals who had received an mRNA COVID-19 vaccine in
pregnancy or were infected with SARS-CoV-2 at 20 to 32 weeks' gestation, had enrolled in a
prospective study at 2 academic medical centers in Boston, and had enrolled their infants in
this follow-up study conducted from July 21, 2021, to October 22, 2021. Individuals
vaccinated or infected at 20 to 32 weeks' gestation were enrolled because previous studies
have demonstrated superior transplacental transfer of antibodies during this window …
pregnancy or were infected with SARS-CoV-2 at 20 to 32 weeks' gestation, had enrolled in a
prospective study at 2 academic medical centers in Boston, and had enrolled their infants in
this follow-up study conducted from July 21, 2021, to October 22, 2021. Individuals
vaccinated or infected at 20 to 32 weeks' gestation were enrolled because previous studies
have demonstrated superior transplacental transfer of antibodies during this window …