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Introduction <p>The impact of maternal SARS-CoV-2 infection on fetal brain development during pregnancy remains unclear. Prior research has associated other antenatal infections with adverse neurodevelopmental outcomes in offspring.</p> Objective <p>To compare neurodevelopmental outcomes in infants&#xa0;born to mothers infected with SARS-CoV-2 during pregnancy (COVID+) to infants without congenital exposure (COVID−).</p> Methods <p>This study included 77 COVID+ infants and 157 COVID- infants assessed at 6 and/or 12&#xa0;months. Outcomes were based on maternal self-report, observed infant behavior and brain fMRI.</p> Results <p>Overall, COVID+ and COVID− infant groups showed no significant&#xa0;differences across a range of neurobehavioral measures. However, analyses not adjusted for multiple comparisons&#xa0;revealed differences: fewer night awakenings at 6 (<i>t</i>(154) = 2.24, <i>p</i> &lt; 0.03) and 12 months (<i>t</i>(107) = 1.94, <i>p</i> &lt; 0.05), and reduced duration of orienting at 12 months (<i>t</i>(55.38) = 2.15, <i>p</i> &lt; 0.04) in COVID+ infants. Neural differences were noted in posterior-anterior midline, insular-frontal, insular-posterior cingulate, and frontal-cingulate regions at an uncorrected&#xa0;threshold of <i>p</i> &lt; 0.01.</p> Conclusion <p>This study of multi-level infant development suggests that infants born to mothers infected with COVID during pregnancy are not experiencing harmful effects of that exposure.</p> Impact <p><UnorderedList Mark="Bullet"> <ItemContent> <p>This study contributes comprehensive data on infant neurodevelopmental outcomes following prenatal SARS-CoV-2 exposure, evaluating a wide range of behavioral and neural measures to address gaps in previous research.</p> </ItemContent> <ItemContent> <p>Findings suggest that congenital exposure to SARS-CoV-2 does not result in significant neurodevelopmental impairments in infants, offering reassurance amidst concerns about potential long-term effects of maternal prenatal COVID-19 infection.</p> </ItemContent> <ItemContent> <p>Results indicate that any observed differences, such as fewer night awakenings and functional neural connectivity patterns, may reflect a more mature developmental profile in the exposed group.</p> </ItemContent> <ItemContent> <p>Continued longitudinal research is necessary to understand behaviorally relevant and lasting neurodevelopmental effects of prenatal SARS-CoV-2 exposure.</p> </ItemContent> </UnorderedList></p>

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COVID-19 infection during pregnancy and infant neurodevelopment

  • 期刊论文

  • 发表日期：

    2025年10月10日

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  • Moriah E. Thomason,
  • Denise M. Werchan,
  • Lanxin Ji,
  • Iris Menu,
  • Cassandra L. Hendrix,
  • Bradley Susskind,
  • Mark Duffy,
  • Natalie H. Brito,
  • Clare McCormack

摘要

Introduction

The impact of maternal SARS-CoV-2 infection on fetal brain development during pregnancy remains unclear. Prior research has associated other antenatal infections with adverse neurodevelopmental outcomes in offspring.

Objective

To compare neurodevelopmental outcomes in infants born to mothers infected with SARS-CoV-2 during pregnancy (COVID+) to infants without congenital exposure (COVID−).

Methods

This study included 77 COVID+ infants and 157 COVID- infants assessed at 6 and/or 12 months. Outcomes were based on maternal self-report, observed infant behavior and brain fMRI.

Results

Overall, COVID+ and COVID− infant groups showed no significant differences across a range of neurobehavioral measures. However, analyses not adjusted for multiple comparisons revealed differences: fewer night awakenings at 6 (t(154) = 2.24, p < 0.03) and 12 months (t(107) = 1.94, p < 0.05), and reduced duration of orienting at 12 months (t(55.38) = 2.15, p < 0.04) in COVID+ infants. Neural differences were noted in posterior-anterior midline, insular-frontal, insular-posterior cingulate, and frontal-cingulate regions at an uncorrected threshold of p < 0.01.

Conclusion

This study of multi-level infant development suggests that infants born to mothers infected with COVID during pregnancy are not experiencing harmful effects of that exposure.

Impact

This study contributes comprehensive data on infant neurodevelopmental outcomes following prenatal SARS-CoV-2 exposure, evaluating a wide range of behavioral and neural measures to address gaps in previous research.

Findings suggest that congenital exposure to SARS-CoV-2 does not result in significant neurodevelopmental impairments in infants, offering reassurance amidst concerns about potential long-term effects of maternal prenatal COVID-19 infection.

Results indicate that any observed differences, such as fewer night awakenings and functional neural connectivity patterns, may reflect a more mature developmental profile in the exposed group.

Continued longitudinal research is necessary to understand behaviorally relevant and lasting neurodevelopmental effects of prenatal SARS-CoV-2 exposure.