Abstract
SARS-CoV-2 has a higher infection rate in pregnant women than age-matched adults. With increased infectivity and transmissibility, the Delta variant is predominant worldwide. Here, we describe intrauterine fetal demise in an unvaccinated women with mild symptoms of SARS-CoV-2 Delta variant infection. Histology and elevated proinflammatory responses of the placenta suggest that fetal demise was associated with placental malperfusion due to Delta variant infection. This study suggests that the Delta variant can cause severe morbidity and mortality to fetuses. Vaccination should continve to be advocated and will likely continue to reduce SARS-CoV-2 infection risks for pregnant women and their fetuses.
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