Objectives This study aims to detect the SARS-CoV-2 infection prevalence in asymptomatic pregnant women. Methods A group of 195 asymptomatic pregnant women who attended the prenatal care outclinic and to the obstetric emergency department was tested concomitantly for SARS-CoV-2 by RT-PCR and serological tests. Results The virus was detected by RT-PCR in two (1.02%) cases and 17 (8.71%) patients had antibodies detected by immunochromatographic tests. Conclusions Due to the high risk of this emerging infection in the health of pregnant women, fetuses and newborns, we suggest the universal screening of all pregnant women admitted to hospital through the combined method RT-PCR and serological.

中文翻译：

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巴西南部无症状孕妇的 SARS-CoV-2：RT-PCR 和血清学检测

目的 本研究旨在检测无症状孕妇的 SARS-CoV-2 感染率。方法 195 名在产前保健门诊和产科急诊就诊的无症状孕妇通过 RT-PCR 和血清学检测同时检测了 SARS-CoV-2。结果RT-PCR检测病毒2例（1.02%），免疫层析检测抗体17例（8.71%）。结论 由于这种新发感染对孕妇、胎儿和新生儿的健康具有高风险，我们建议通过 RT-PCR 和血清学相结合的方法对所有入院的孕妇进行普遍筛查。