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Durability of anti-Spike antibodies in the infant after maternal COVID-19 vaccination
Lydia Shook; Caroline G. Atyeo; Lael M. Yonker; Alessio Fasano; Kathryn J. Gray; Galit Alter; Andrea G. Edlow.
Afiliação
  • Lydia Shook; Massachusetts General Hospital
  • Caroline G. Atyeo; Ragon Institute of MGH, MIT and Harvard;
  • Lael M. Yonker; Massachusetts General Hospital
  • Alessio Fasano; Massachusetts General Hospital
  • Kathryn J. Gray; Brigham and Women's Hospital
  • Galit Alter; Ragon Institute of MGH, MIT, and Harvard
  • Andrea G. Edlow; Massachusetts General Hospital
Preprint em Inglês | medRxiv | ID: ppmedrxiv-21266415
ABSTRACT
COVID-19 vaccination in pregnancy generates functional anti-Spike IgG antibodies that are known to cross the placenta. However, the durability of vaccine-induced maternal anti-S IgG in infant circulation, and how it compares to durability of antibody from maternal natural infection, is unknown. We quantified anti-S IgG in 92 2-month and 6-month-old infants whose mothers were vaccinated in pregnancy, and in 12 6-month-old infants after maternal natural infection with SARS-CoV-2. In the vaccinated group, 94% (58/62) of infants had detectable anti-S IgG at 2 months, and 60% (18/30) had detectable antibody at 6 months. In contrast, 8% (1/12) of infants born to women infected with SARS-CoV-2 in pregnancy had detectable anti-S IgG at the 6-month timepoint. Vaccination resulted in significantly higher maternal and cord titers at delivery and significantly greater antibody persistence in infants at 6 months, compared to natural infection.
Licença
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Texto completo: Disponível Coleções: Preprints Base de dados: medRxiv Tipo de estudo: Rct Idioma: Inglês Ano de publicação: 2021 Tipo de documento: Preprint
Texto completo: Disponível Coleções: Preprints Base de dados: medRxiv Tipo de estudo: Rct Idioma: Inglês Ano de publicação: 2021 Tipo de documento: Preprint
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