• Miranda J Delahoy, Michael Whitaker, Alissa O'Halloran, Shua J Chai, Pam Daily Kirley, Nisha Alden, Breanna Kawasaki, James Meek, Kimberly Yousey-Hindes, Evan J Anderson, Kyle P Openo, Maya L Monroe, Patricia A Ryan, Kimberly Fox, Sue Kim, Ruth Lynfield, Samantha Siebman, Sarah Shrum Davis, Daniel M Sosin, Grant Barney, Alison Muse, Nancy M Bennett, Christina B Felsen, Laurie M Billing, Jessica Shiltz, Melissa Sutton, Nicole West, William Schaffner, H Keipp Talbot, Andrea George, Melanie Spencer, Sascha Ellington, Romeo R Galang, Suzanne M Gilboa, Van T Tong, Alexandra Piasecki, Lynnette Brammer, Alicia M Fry, Aron J Hall, Jonathan M Wortham, Lindsay Kim, Shikha Garg, and COVID-NET Surveillance Team.
• MMWR Morb. Mortal. Wkly. Rep. 2020 Sep 25; 69 (38): 1347-1354.

AbstractPregnant women might be at increased risk for severe coronavirus disease 2019 (COVID-19) (1,2). The COVID-19-Associated Hospitalization Surveillance Network (COVID-NET) (3) collects data on hospitalized pregnant women with laboratory-confirmed SARS-CoV-2, the virus that causes COVID-19; to date, such data have been limited. During March 1-August 22, 2020, approximately one in four hospitalized women aged 15-49 years with COVID-19 was pregnant. Among 598 hospitalized pregnant women with COVID-19, 54.5% were asymptomatic at admission. Among 272 pregnant women with COVID-19 who were symptomatic at hospital admission, 16.2% were admitted to an intensive care unit (ICU), and 8.5% required invasive mechanical ventilation. During COVID-19-associated hospitalizations, 448 of 458 (97.8%) completed pregnancies resulted in a live birth and 10 (2.2%) resulted in a pregnancy loss. Testing policies based on the presence of symptoms might miss COVID-19 infections during pregnancy. Surveillance of pregnant women with COVID-19, including those with asymptomatic infections, is important to understand the short- and long-term consequences of COVID-19 for mothers and newborns. Identifying COVID-19 in women during birth hospitalizations is important to guide preventive measures to protect pregnant women, parents, newborns, other patients, and hospital personnel. Pregnant women and health care providers should be made aware of the potential risks for severe COVID-19 illness, adverse pregnancy outcomes, and ways to prevent infection.

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