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Summary: By conducting a systematic review and meta-analysis, it was found that protection from past SARS-CoV-2 infection is high and remains high even after 40 weeks. Protection against symptomatic disease is high for ancestral, alpha, beta, and delta variants, but lower for the omicron BA.1 variant. Protection against severe disease remains high for all variants. The findings have important implications for predicting disease burden, vaccine policy, and travel restrictions.
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Obstetrics & Gynecology
S. Donati et al.
Summary: The study found that the majority of pregnant women infected with the virus were asymptomatic, while a small percentage required treatment for pneumonia or ventilatory support. Risk factors for developing pneumonia included age, citizenship from countries with high migration pressure, previous comorbidities, and obesity. Preterm birth rates increased compared to the pre-pandemic period, while stillbirths and maternal and neonatal deaths remained stable. The need for ventilatory support and/or ICU admission increased during the Alpha-variant period compared to the wild-type period.
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Obstetrics & Gynecology
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Summary: Through a comprehensive analysis of 34 studies, it was found that the proportion of SARS-CoV-2 RNA in human milk is extremely low, but no conclusion can be drawn regarding its infectivity and impact on infants. Exclusive breastfeeding should be continued unless contraindications exist.
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Summary: This study found that SARS-CoV-2 RNA can be detected in breastmilk after recent infection, but there is no evidence of the presence of infectious virus. Breastfeeding does not appear to be a risk factor for transmitting the infection to infants.
PEDIATRIC RESEARCH
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Helena Blakeway et al.
Summary: This study investigates the uptake and safety of COVID-19 vaccination among pregnant women. The results show that the proportion of vaccinated pregnant women is low, and those who received the vaccine experienced similar pregnancy outcomes compared to unvaccinated pregnant women. There is lower uptake among younger women, non-White ethnicity, and lower socioeconomic background. This study contributes to the evidence on the safety of COVID-19 vaccination in pregnancy and emphasizes the importance of improving awareness among pregnant women and healthcare professionals on vaccine safety.
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Denise J. Jamieson et al.
Summary: Physiological, mechanical, and immunologic changes in pregnancy may affect susceptibility to and severity of COVID-19. Pregnancy is a risk factor for severe disease, with pregnant individuals more likely to experience adverse outcomes. Intrauterine transmission of SARS-CoV-2 is rare, possibly due to low viral levels and reduced expression of necessary receptors in the placenta. COVID-19 and its impact on healthcare systems have also had negative effects on pregnancy outcomes.
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Christine Bauerl et al.
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Immunology
Marco A. P. Safadi et al.
Summary: This review examines the impact of COVID-19 in pregnant women and provides evidence on the safety, effectiveness, and immune response(s) to vaccination among pregnant and lactating women. Pregnant women are more susceptible to adverse COVID-19 outcomes compared to non-pregnant women. COVID-19 in pregnancy is associated with adverse maternal and neonatal outcomes, particularly in low- and middle-income countries. Vaccination of pregnant or lactating women against COVID-19 has been shown to be safe, effective, and results in robust immune responses, including transfer of antibodies to the newborn.
AMERICAN JOURNAL OF REPRODUCTIVE IMMUNOLOGY
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Summary: This study investigates the association between health literacy and COVID-19 prevention behaviors among pregnant and postpartum women in Japan. The results show that women with higher health literacy scores have significantly higher proportions of actively adopting preventive behaviors. This suggests that health literacy plays a positive role in improving awareness and behaviors related to COVID-19 prevention.
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Rafael Vila-Candel et al.
Summary: This study analyzes the obstetric-neonatal outcomes of women in labour with symptomatic and asymptomatic COVID-19, and finds that symptomatic women are at higher risk for obstetric complications, ICU admission, clinical care, and mother-infant separation.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
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Desiree Mena-Tudela et al.
Summary: Catalan legislation defines obstetric violence as preventing access to truthful information and highlights its impact on physical, mental, sexual, and reproductive health. A study conducted in Spain during the SARS-CoV-2 pandemic found that some women were advised to stop breastfeeding and those diagnosed with SARS-CoV-2 during delivery, belonged to a low social class, had secondary education, or experienced obstetric violence perceived less support for breastfeeding.
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Summary: An analysis of data from Qatar showed that previous infection, vaccination, and hybrid immunity all demonstrated effectiveness in protecting against symptomatic Covid-19 caused by the BA.1 and BA.2 sublineages of the Omicron variant.
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Elena Marban-Castro et al.
Summary: This study investigates the perceptions of pregnant women and healthcare workers regarding COVID-19 vaccination. Most participants were aware of the existence of COVID-19 maternal vaccines, and the recommendation by healthcare workers was identified as the greatest facilitator for vaccination. However, the fear of harming the fetus was reported as the most significant barrier to vaccination.
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Pediatrics
Prakesh S. Shah et al.
Summary: This study compared neonatal outcomes and resource use between neonates born to mothers with SARS-CoV-2 positivity during pregnancy and neonates born to mothers without SARS-CoV-2 positivity. The results showed that maternal SARS-CoV-2 positivity was not associated with increased durations of respiratory support, morbidities, mortality, or length of hospital stay in Canada and Sweden among neonates admitted to tertiary NICU.
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Victoria Male
Summary: This article discusses the risks of SARS-CoV-2 infection during pregnancy and the role of vaccination in reducing these risks. Many pregnant individuals have concerns about the safety of vaccines, but existing data confirm the safety and efficacy of COVID-19 vaccines during pregnancy.
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Elizabeth Centeno-Tablante et al.
Summary: Limited information is available on potential mother-to-child transmission of COVID-19, particularly through breast milk. Current evidence does not support the transmission of SARS-CoV-2 through breast milk. Further studies with longer follow-up periods are needed to gather data on infant feeding practices and viral presence in breast milk.
ANNALS OF THE NEW YORK ACADEMY OF SCIENCES
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Steven Giesbers et al.
Summary: This study systematically reviewed the research on the treatment effects of COVID-19 in pregnant women, finding that there is still very limited research on pharmacological and non-pharmacological treatments for pregnant women, and data on this aspect are still very scarce.
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Giuseppe Rizzo et al.
Summary: Pregnancies complicated by SARS-CoV-2 infection do not have a higher risk of fetal growth restriction through impaired placental function, and increased fetal surveillance is not supported based on the findings from this study.
ACTA OBSTETRICIA ET GYNECOLOGICA SCANDINAVICA
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Pediatrics
Mark L. Hudak
Summary: Pregnant women infected with SARS-CoV-2 are at greater risk of severe outcomes compared to nonpregnant women, including increased rates of ICU admission, need for mechanical ventilation, mortality, and various complications. The risk of mother-to-infant transmission is relatively low.
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Obstetrics & Gynecology
Hilde Engjom et al.
Summary: This study examined pregnant women with COVID-19 in five Nordic countries and found that the risk of admission due to COVID-19 during pregnancy was low in these countries. However, a fifth of the women required intensive care, and there were higher rates of preterm and cesarean deliveries among women with COVID-19. National public health policies seemed to impact the risk of severe COVID-19 disease admission in pregnancy. Collaboration among Nordic countries is important in collecting robust data and assessing rare outcomes.
ACTA OBSTETRICIA ET GYNECOLOGICA SCANDINAVICA
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Medicine, General & Internal
Tom T. Shimabukuro et al.
Summary: Preliminary data indicates that there are no obvious safety signals among pregnant women who received mRNA Covid-19 vaccines, but more data is needed for further confirmation. Adverse reactions such as injection-site pain were reported more frequently in pregnant women, but most pregnancies resulted in live births with some cases of preterm birth and small size for gestational age.
NEW ENGLAND JOURNAL OF MEDICINE
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Multidisciplinary Sciences
Nicola Vousden et al.
Summary: The study identified factors that increase the risk of symptomatic and asymptomatic SARS-CoV-2 infection in pregnancy. Clinicians can be reassured that the majority of women do not experience severe complications of SARS-CoV-2 in pregnancy. Cesarean birth rates and neonatal unit admission rates were increased for pregnant women with symptomatic and asymptomatic SARS-CoV-2. The risks of stillbirth or neonatal death were not significantly increased.
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Virology
Sara Cruz Melguizo et al.
Summary: This study aimed to investigate the impact of maternal SARS-CoV-2 infection on perinatal outcomes, particularly preterm births. The findings revealed significant differences in preterm deliveries, premature rupture of membranes, venous thrombotic events, and incidence of severe pre-eclampsia between infected and uninfected pregnant women.
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Medicine, General & Internal
Inbal Goldshtein et al.
Summary: The retrospective cohort study found that BNT162b2 mRNA vaccination in pregnant women was associated with a significantly reduced risk of SARS-CoV-2 infection compared to no vaccination. However, interpretation of the study findings is limited by the observational design.
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION
(2021)
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Acoustics
S. Bookstein Peretz et al.
Summary: This observational study compared the immunogenicity and reactogenicity of the Pfizer/BioNTech BNT162b2 mRNA COVID-19 vaccine between pregnant and non-pregnant women. The study found that pregnant women experienced similar rates of adverse effects following vaccination as non-pregnant women, with lower levels of SARS-CoV-2 IgG. The vaccine was effective in generating a humoral immune response in pregnant women, with no safety concerns identified.
ULTRASOUND IN OBSTETRICS & GYNECOLOGY
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Medicine, General & Internal
Gabriel Chodick et al.
Summary: The short-term effectiveness of the first dose of the BNT162b2 vaccine against SARS-CoV-2 infection 13 to 24 days after immunization in a real-world setting was assessed, showing comparable results to the phase III randomized clinical trial.
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Obstetrics & Gynecology
Regan N. Theiler et al.
Summary: In this study, pregnant women who received COVID-19 vaccination were less likely to contract COVID-19 compared to those who did not receive the vaccine, and vaccination during pregnancy did not lead to increased risks of pregnancy or delivery complications. Factors such as older age, higher education level, non-smoking status, use of infertility treatment during current pregnancy, and lower gravidity were associated with a higher likelihood of vaccination.
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Madalina Timircan et al.
Summary: This study reveals that a third-trimester infection with SARS-CoV-2 significantly increases the risk of premature rupture of membranes, preterm birth with emergency c-sections, and lower APGAR scores in newborns. Pregnancies where mothers are infected with SARS-CoV-2 are more likely to have premature births and lower APGAR scores in newborns.
MEDICINA-LITHUANIA
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Infectious Diseases
Ishan Garg et al.
Summary: The global COVID-19 pandemic has had devastating impacts, but multiple vaccines have been developed at an unprecedented speed. Despite pregnant and lactating women being excluded from vaccine trials, healthcare professional advisory committees have issued guidance supporting COVID-19 vaccination based on prior experience and preliminary studies.
INFECTIOUS DISEASE REPORTS
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Health Policy & Services
Chrissy Liu et al.
Summary: A retrospective cohort study conducted in a hospital in Brooklyn, New York found that SARS-CoV-2 infection did not increase the risk of adverse obstetric or neonatal outcomes in a predominantly Black population, despite the presence of comorbidities.
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