{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,6]],"date-time":"2026-06-06T07:35:07Z","timestamp":1780731307376,"version":"3.54.1"},"reference-count":9,"publisher":"Georg Thieme Verlag KG","issue":"11","funder":[{"name":"Kaiser Permanente Direct Community Benefit Funds"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Perinatol"],"published-print":{"date-parts":[[2020,9]]},"abstract":"<jats:p>\n            Objective\u2003The coronavirus disease 2019 (COVID-19) pandemic has created a need for data regarding the prevalence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in pregnant women. After implementing universal screening for COVID-19 in women admitted for delivery, we sought to describe the characteristics of COVID-19 in this large cohort of women.<\/jats:p><jats:p>\n            Study Design\u2003An observational study of women admitted to labor and delivery units in Kaiser Permanente Southern California (KPSC) hospitals between April 6 and May 11, 2020 who were universally offered testing for SARS-CoV-2 infection (n\u2009=\u20093,963). Hospital inpatient and outpatient physician encounter, and laboratory records were used to ascertain universal testing levels, test results, and medical and obstetrical histories. The prevalence of SARS-CoV-2 infection was estimated from the number of women who tested positive during labor per 100 women delivered.<\/jats:p><jats:p>\n            Results\u2003Of women delivered during the study period, 3,923 (99.0%) underwent SARS-CoV-2 testing. A total of 17 (0.43%; 95% confidence interval: 0.23\u20130.63%) women tested positive, and none of them were symptomatic on admission. There was no difference in terms of characteristics between SARS-CoV-2 positive and negative tested women. One woman developed a headache attributed to COVID-19 3 days postpartum. No neonates had a positive test at 24\u2009hours of life.<\/jats:p><jats:p>\n            Conclusion\u2003The findings suggest that in pregnant women admitted for delivery between April 6 and May 11, 2020 in this large integrated health care system in Southern California, prevalence of SARS-CoV-2 test positive was very low and all patients were asymptomatic on admission.<\/jats:p><jats:p>\n            Key Points\n          <\/jats:p>","DOI":"10.1055\/s-0040-1714060","type":"journal-article","created":{"date-parts":[[2020,7,3]],"date-time":"2020-07-03T22:55:48Z","timestamp":1593816948000},"page":"1110-1114","source":"Crossref","is-referenced-by-count":43,"title":["Universal SARS-Cov-2 Screening in Women Admitted for Delivery in a Large Managed Care Organization"],"prefix":"10.1055","volume":"37","author":[{"given":"Michael J.","family":"Fassett","sequence":"additional","affiliation":[{"name":"Department of Maternal-Fetal Medicine, Kaiser Permanente West Los Angeles Medical Center, Los Angeles, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lawrence D.","family":"Lurvey","sequence":"additional","affiliation":[{"name":"Southern California Permanente Medical Group, Pasadena, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lyn","family":"Yasumura","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Kaiser Permanente Baldwin Park Medical Center, Baldwin Park, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marielle","family":"Nguyen","sequence":"additional","affiliation":[{"name":"Department of Neonatal Medicine, Kaiser Permanente Anaheim Medical Center, Anaheim, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joseph J.","family":"Colli","sequence":"additional","affiliation":[{"name":"Department of Neonatal Medicine, Kaiser Permanente South Bay Medical Center, Los Angeles, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marianna","family":"Volodarskiy","sequence":"additional","affiliation":[{"name":"Kaiser Foundation Hospitals, Pasadena, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jonathan C.","family":"Gullett","sequence":"additional","affiliation":[{"name":"Southern California Permanente Medical Group Regional Reference Laboratories, North Hollywood, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Braun","sequence":"additional","affiliation":[{"name":"Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alex","family":"Fong","sequence":"additional","affiliation":[{"name":"Department of Maternal-Fetal Medicine, Kaiser Permanente Irvine Medical Center, Irvine, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Neha","family":"Trivedi","sequence":"additional","affiliation":[{"name":"Department of Maternal-Fetal Medicine, Kaiser Permanente San Diego Medical Center, San Diego, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katia","family":"Bruxvoort","sequence":"additional","affiliation":[{"name":"Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vicki","family":"Chiu","sequence":"additional","affiliation":[{"name":"Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Darios","family":"Getahun","sequence":"additional","affiliation":[{"name":"Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California"},{"name":"Department of Health Systems Science at the Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, California"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2020,7,3]]},"reference":[{"issue":"02","key":"ref2","doi-asserted-by":"crossref","first-page":"100118","DOI":"10.1016\/j.ajogmf.2020.100118","article-title":"COVID-19 infection among asymptomatic and symptomatic pregnant women: two weeks of confirmed presentations to an affiliated pair of New York City hospitals","volume":"2","author":"N Breslin","year":"2020","journal-title":"Am J Obstet Gynecol MFM"},{"issue":"22","key":"ref3","doi-asserted-by":"crossref","first-page":"2163","DOI":"10.1056\/NEJMc2009316","article-title":"Universal screening for SARS-CoV-2 in women admitted for delivery","volume":"382","author":"D Sutton","year":"2020","journal-title":"N Engl J Med"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2020.04.024","article-title":"Screening all pregnant women admitted to labor and delivery for the virus responsible for COVID-19","author":"W S Vintzileos","year":"2020","journal-title":"Am J Obstet Gynecol"},{"key":"ref7","doi-asserted-by":"crossref","first-page":"809","DOI":"10.1016\/S0140-6736(20)30360-3","article-title":"Clinical characteristics and intrauterine vertical transmission potential of COVID-19 infection in nine pregnant women: a retrospective review of medical records","volume":"395","author":"H Chen","year":"2020","journal-title":"Lancet"},{"issue":"01","key":"ref9","doi-asserted-by":"crossref","first-page":"51","DOI":"10.21037\/tp.2020.02.06","article-title":"Clinical analysis of 10 neonates born to mothers with 2019-nCoV pneumonia","volume":"9","author":"H Zhu","year":"2020","journal-title":"Transl Pediatr"},{"key":"ref10","first-page":"ciaa200","article-title":"A case of 2019 novel coronavirus in a pregnant woman with preterm delivery","author":"X Wang","year":"2020","journal-title":"Clin Infect Dis"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1001\/jamapediatrics.2020.0878","article-title":"Neonatal early-onset infection with SARS-CoV-2 in 33 neonates born to mothers with COVID-19 in Wuhan, China","author":"L Zeng","year":"2020","journal-title":"JAMA Pediatr"},{"issue":"18","key":"ref12","first-page":"1846","article-title":"Possible vertical transmission of SARS-CoV-2 from an infected mother to her newborn","volume":"323","author":"L Dong","year":"2020","journal-title":"JAMA"},{"issue":"08","key":"ref13","doi-asserted-by":"crossref","first-page":"861","DOI":"10.1055\/s-0040-1710050","article-title":"Severe COVID-19 during pregnancy and possible vertical transmission","volume":"37","author":"M C Alzamora","year":"2020","journal-title":"Am J Perinatol"}],"container-title":["American Journal of Perinatology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/s-0040-1714060.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,9,1]],"date-time":"2020-09-01T22:33:11Z","timestamp":1598999591000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/s-0040-1714060"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,7,3]]},"references-count":9,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2020,9,1]]},"published-print":{"date-parts":[[2020,9]]}},"URL":"https:\/\/doi.org\/10.1055\/s-0040-1714060","relation":{},"ISSN":["0735-1631","1098-8785"],"issn-type":[{"value":"0735-1631","type":"print"},{"value":"1098-8785","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,7,3]]}}}