Madeline R. Pfeifer
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View article: Measles Serostatus Among Parturient Patients at 2 Philadelphia Hospitals in 2021
Measles Serostatus Among Parturient Patients at 2 Philadelphia Hospitals in 2021 Open
This observational study explores whether rubella serostatus, which is routinely assessed during pregnancy, can serve as a proxy for measles serostatus in parturient persons.
View article: Maternal and Newborn Hospital Outcomes of Perinatal SARS-CoV-2 Infection: A National Registry
Maternal and Newborn Hospital Outcomes of Perinatal SARS-CoV-2 Infection: A National Registry Open
OBJECTIVES The American Academy of Pediatrics National Registry for the Surveillance and Epidemiology of Perinatal coronavirus disease 2019 (COVID-19) (NPC-19) was developed to provide information on the effects of perinatal severe acute r…
View article: Comparison of Maternal and Neonatal Antibody Levels After COVID-19 Vaccination vs SARS-CoV-2 Infection
Comparison of Maternal and Neonatal Antibody Levels After COVID-19 Vaccination vs SARS-CoV-2 Infection Open
Importance Pregnant persons are at an increased risk of severe COVID-19 from SARS-CoV-2 infection, and COVID-19 vaccination is currently recommended during pregnancy. Objective To ascertain the association of vaccine type, time from vaccin…
View article: Perinatal COVID-19 maternal and neonatal outcomes at two academic birth hospitals
Perinatal COVID-19 maternal and neonatal outcomes at two academic birth hospitals Open
View article: Neighborhood Characteristics and Racial Disparities in Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Seropositivity in Pregnancy
Neighborhood Characteristics and Racial Disparities in Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Seropositivity in Pregnancy Open
OBJECTIVE: To quantify the extent to which neighborhood characteristics contribute to racial and ethnic disparities in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) seropositivity in pregnancy. METHODS: This cohort study inc…
View article: Assessment of SARS-CoV-2 serostatus and hypertensive disorders of pregnancy
Assessment of SARS-CoV-2 serostatus and hypertensive disorders of pregnancy Open
View article: Assessment of Maternal and Neonatal Cord Blood SARS-CoV-2 Antibodies and Placental Transfer Ratios
Assessment of Maternal and Neonatal Cord Blood SARS-CoV-2 Antibodies and Placental Transfer Ratios Open
In this cohort study, maternal IgG antibodies to SARS-CoV-2 were transferred across the placenta after asymptomatic as well as symptomatic infection during pregnancy. Cord blood antibody concentrations correlated with maternal antibody con…
View article: Transplacental Transfer of SARS-CoV-2 Antibodies
Transplacental Transfer of SARS-CoV-2 Antibodies Open
We measured SARS-CoV-2 antibody levels in serum samples from 1,471 mother/newborn dyads and found efficient transplacental transfer of SARS-CoV-2 IgG antibodies in 72 of 83 seropositive pregnant women. Transfer ratios >1.0 were observed am…
View article: SARS-CoV-2 Seroprevalence Among Parturient Women
SARS-CoV-2 Seroprevalence Among Parturient Women Open
Limited data are available for pregnant women affected by SARS-CoV-2. Serological tests are critically important to determine exposure and immunity to SARS-CoV-2 within both individuals and populations. We completed SARS-CoV-2 serological …
View article: SARS-CoV-2 seroprevalence among parturient women in Philadelphia
SARS-CoV-2 seroprevalence among parturient women in Philadelphia Open
More than 6% of parturient women in Philadelphia (4 April to 3 June 2020) had serological evidence of exposure to SARS-CoV-2.
View article: SARS-CoV-2 Seroprevalence Among Parturient Women
SARS-CoV-2 Seroprevalence Among Parturient Women Open
SARS-CoV-2 has led to a pandemic of respiratory and multisystem disease, named COVID-19.1 Limited data are available for pregnant women affected by COVID-19.2 Serological tests, particularly those that provide quantitative information, are…