id author title date pages extension mime words sentences flesch summary cache txt cord-338152-e8e3lv79 Zhang, Peilin Detection of SARS-CoV-2 in placentas with pathology and vertical transmission 2020-08-03 .txt text/plain 610 50 55 We examined 364 consecutive placentas from the mothers tested in our facilities since the universal testing policy was adopted in March 2020 including 74 positive and 290 negative for SARS-CoV2 by nasopharyngeal swab PCR method as previously described [1] . One positive placenta for SARS-CoV2 by ISH was delivered by C-section at 35 weeks 6 days due to placental previa 4 associated with placental infarcts, and the newborn baby was tested positive by swab PCR at 24 hours, 48 hours and 7 days. The other positive placenta was from a mother with 40 week gestation associated with no significant clinical and pathological features, and the baby was tested negative for SARS-CoV2 by swab PCR method within the first 24 hours. The current study showed that SARS-COV2 viral particles are uncommon in placentas from PCR-positive mothers at late gestation. Neonatal testing for SARS-CoV2 by swab PCR also showed rare positive cases from positive mothers. ./cache/cord-338152-e8e3lv79.txt ./txt/cord-338152-e8e3lv79.txt