Safety, Testing/Transmission, and Outcomes in Pregnancies With COVID-19

Pregnant women are a vulnerable and high-risk population, as COVID-19 is associated with an increased risk of preterm birth, cesarean section, and maternal intensive care. The objectives of this study are to: (a) evaluate the full impact of SARS-CoV-2 in pregnancy to inform testing strategies, (b) examine the factors that impede testing during pregnancy, and (c) use study data to devise implementation strategies that improve SARS-CoV-2 testing in pregnancy and prenatal care during the pandemic. Investigators will prospectively enroll two cohorts of pregnant women: 1) exposed (SARS-CoV-2 positive), and 2) unexposed (SARS-CoV-2 negative as defined by antibody testing at the beginning of pregnancy, every trimester, and at delivery). Women who initially enroll as unexposed but later test positive for SARS-CoV-2 antibodies will cross over to the exposed cohort. In Aim 1, investigators will evaluate patients' and providers' perceptions of SARS-CoV-2 testing during pregnancy and the influence of COVID-19 on maternal care-seeking behavior and anxiety via surveys and semi-structured interviews. In Aim 2, investigators will determine the effect of SARS-CoV-2 infection during pregnancy on the risk of preterm birth and other adverse pregnancy outcomes in symptomatic and asymptomatic disease. It is hypothesized that SARS-CoV-2 infection will increase the risk of preterm birth by 12%. In Aim 3, investigators will estimate the risk of mother-to-fetus SARS-CoV-2 transmission and viral presence in umbilical cord blood, placenta, and amniotic fluid by assaying for viral RNA in the neonate, cord blood, and placenta. Collectively, Aims 1-3 will be interpreted by investigators, the Scientific Advisory Board and the Community Advisory Board who will apply data to devising targeted implementation strategies designed for rapid community dissemination to improve testing and prenatal care.

Inclusion criteria

for exposed (SARS-CoV-2 positive) cohort:

• Viable intrauterine pregnancy
• Seroconversion or SARS-CoV-2 IgG antibodies or positive RT-PCR for SARS-CoV-2 during current pregnancy

Exclusion criteria

for exposed (SARS-CoV-2 positive) cohort:

• No viable intrauterine pregnancy
• No history of SARS-CoV-2 infection during pregnancy

Inclusion criteria

for unexposed (SARS-CoV-2 negative) cohort:

• Viable intrauterine pregnancy
• No history of SARS-CoV-2 infection prior to pregnancy

Exclusion criteria

for unexposed (SARS-CoV-2 negative) cohort:

• No viable intrauterine pregnancy
• Detection of SARS-CoV-2 IgG antibodies at enrollment