id author title date pages extension mime words sentences flesch summary cache txt cord-278839-uu2wlpmp Alberca, Ricardo Wesley Pregnancy, Viral Infection, and COVID-19 2020-07-07 .txt text/plain 7237 368 43 In 2009, during the H1N1 flu pandemic, an increased ratio of female to male cases was verified, in which pregnant women developed more complications, as severe acute respiratory syndrome, and higher mortality compared to the general population (30, 31) . Additionally, infection by the Lassa virus in pregnant women shows high levels of placental replication, and the risk of maternal-fetal mortality increases with the duration of pregnancy (38, 39) . At first, contagion occurred through contact with some infected animals but, soon there were the first reports of human-to-human transmission (93), The virus was identified as belonging to the coronaviridae family and was designated SARS-CoV-2 (severe acute respiratory syndrome coronavirus-2) (94). Chen and collaborators, verified alteration in calcium and albumin levels in the blood of pregnant women with SARS-CoV-2 infection (124) , which could potentially increase the severity in COVID-19 (125) . ./cache/cord-278839-uu2wlpmp.txt ./txt/cord-278839-uu2wlpmp.txt