Research Letter: PDF OnlyLymphopenia and Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infection Among Hospitalized Obstetric PatientsDuffy, Cassandra R. MD, MPH; Hart, Jessica M. MD; Modest, Anna M. PhD; Hacker, Michele R. ScD; Golen, Toni MD; Li, Yunping MD, MSc; Zera, Chloe MD, MPH; Shainker, Scott A. DO, MS; Mehrotra, Preeti MD, MPH; Zash, Rebecca MD; Wylie, Blair J. MD, MPHAuthor Information Departments of Obstetrics and Gynecology and Anesthesia, Critical Care and Pain Medicine, and the Division of Infectious Diseases, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts Corresponding author: Blair J. Wylie, MD, MPH, Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02115; email: firstname.lastname@example.org. This work was conducted with support from Harvard Catalyst|The Harvard Clinical and Translational Science Center (National Center for Advancing Translational Sciences, National Institutes of Health Award UL 1TR002541) and financial contributions from Harvard University and its affiliated academic healthcare centers. Financial Disclosure Anna M. Modest disclosed receiving a grant from Charles Koch Foundation, but not for this study. Michele R. Hacker received money paid to her institution from NIEHS and the Charles Koch Foundation. She also disclosed having additional financial relationships with the Society for Family Planning, Breast Cancer Research Foundation, William F Milton Fund, and Affiliates Risk Management Services, Inc. Toni Golen received money paid to their institution from Harvard Health Publishing and money was paid to them for medical legal consulting. Scott Shainker has received funding from the Charles Koch Foundation. Rebecca Zash disclosed that money was paid to her institution from the NIH/NICHD and money was paid to her from Virology Education. Blair Wylie serves on the board of the Society for Maternal-Fetal Medicine and has received research grant funding paid to her institution from NIEHS, NIAID, and the Gates Foundation. The other authors did not report any potential conflicts of interest. Each author has confirmed compliance with the journal's requirements for authorship. Peer reviews and author correspondence are available at http://links.lww.com/AOG/B917. Received April 26, 2020 Received in revised form May 03, 2020 Accepted May 07, 2020 Obstetrics & Gynecology: May 19, 2020 - Volume Publish Ahead of Print - Issue - doi: 10.1097/AOG.0000000000003984 Free PAP Metrics Lymphopenia does not identify severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection among asymptomatic patients admitted to an obstetrics unit or among obstetric patients under investigation for coronavirus disease 2019 (COVID-19). © 2020 by The American College of Obstetricians and Gynecologists. Published by Wolters Kluwer Health, Inc. All rights reserved.