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Absence of SARS-CoV-2 in Placental Tissue After Maternal COVID-19

JAMA Network Open 10.1001/jamanetworkopen.2026.8567

April 22, 2026 at 11:00 AM EDT

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This case-control study examines whether SARS-CoV-2 protein or RNA persists in placental tissue following maternal COVID-19 infection.

Corresponding Authors: Harvey J. Kliman, MD, PhD, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, 310 Cedar St, 225 FMB, New Haven, CT 06510 (harvey.kliman@yale.edu); Shelli F. Farhadian, MD, PhD, Department of Medicine, Section of Infectious Diseases, Yale School of Medicine, 300 George St, New Haven, CT 06520 (shelli.farhadian@yale.edu).

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