Abstract

Background. The effects of Covid-19 in pregnancy remain relatively unknown. We present a case of second trimester pregnancy with symptomatic Covid-19 complicated by severe preeclampsia and placental abruption. Methods. We analyzed placenta for the presence of SARS-CoV-2 through molecular and immunohistochemical assays and by and electron microscopy, and we measured the maternal antibody response in blood to this infection. Results. SARS-CoV-2 localized predominantly to syncytiotrophoblast cells at the maternal-fetal interface of the placenta. Histological examination of the placenta revealed a dense macrophage infiltrate, but no evidence for vasculopathy typically associated with preeclampsia. Conclusion. This case demonstrates SARS-CoV-2 invasion of the placenta, highlighting the potential for severe morbidity among pregnant women with Covid-19.

Authors

Hillary Hosier, Shelli F. Farhadian, Raffaella A. Morotti, Uma Deshmukh, Alice Lu-Culligan, Katherine H. Campbell, Yuki Yasumoto, Chantal B.F. Vogels, Arnau Casanovas-Massana, Pavithra Vijayakumar, Bertie Geng, Camila D. Odio, John Fournier, Anderson F. Brito, Joseph R. Fauver, Feimei Liu, Tara Alpert, Reshef Tal, Klara Szigeti-Buck, Sudhir Perincheri, Christopher P. Larsen, Aileen M. Gariepy, Gabriela Aguilar, Kristen L. Fardelmann, Malini Harigopal, Hugh S. Taylor, Christian M. Pettker, Anne L. Wyllie, Charles S. Dela Cruz, Aaron M. Ring, Nathan D. Grubaugh, Albert I. Ko, Tamas L. Horvath, Akiko Iwasaki, Uma M. Reddy, Heather S. Lipkind

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