Childhood Humoral Immunity During and After COVID-19 Lockdowns

Our study, including serum from 3678 hospital inpatients and outpatients sampled before, during and after the COVID-19 lockdown periods, showed a significant decrease in overall IgG levels during the periods of sanitary restriction, particularly in children 3-10 years of age. Few months after the lifting of COVID-19 restrictions, immunoglobulin levels normalized. COVID-19 lockdowns may have induced a transient humoral immune gap.

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Publication Details

Journal
The Pediatric Infectious Disease Journal
Published
2025-05-23
DOI
https://doi.org/10.1097/inf.0000000000004869
Citations
2
Primary Topic
Respiratory viral infections research
Type
article
Field-Weighted Citation Impact
2.71
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article

Childhood Humoral Immunity During and After COVID-19 Lockdowns

Isabelle Pellier, Julien Lejeune, Charline Miot, Coralie Mallebranche et al.
2 citations
The Pediatric Infectious Disease Journal
Respiratory viral infections research
2.71
article

Childhood Humoral Immunity During and After COVID-19 Lockdowns

Isabelle Pellier, Julien Lejeune, Charline Miot, Coralie Mallebranche, V. Giacobbi, Marie‐Alexandra Alyanakian, Emeline Vinatier, Céline Beauvillain, Tiffanie Bousser
article en
2 citations

Abstract

Our study, including serum from 3678 hospital inpatients and outpatients sampled before, during and after the COVID-19 lockdown periods, showed a significant decrease in overall IgG levels during the periods of sanitary restriction, particularly in children 3-10 years of age. Few months after the lifting of COVID-19 restrictions, immunoglobulin levels normalized. COVID-19 lockdowns may have induced a transient humoral immune gap.

The Pediatric Infectious Disease JournalVol. 44(9)
Hôpital Necker-Enfants Malades (FR), Centre National de la Recherche Scientifique (FR), Inserm (FR), Centre de Recherche en Cancérologie et Immunologie Intégrée Nantes Angers (FR), Assistance Publique – Hôpitaux de Paris (FR), Centre Hospitalier Universitaire d'Angers (FR), Centre Hospitalier du Mans (FR), Thion Medical (France) (FR), Université d'Angers (FR), Nantes Université (FR)
Good health and well-being
Openalex Percentile: Top 10%
Respiratory viral infections research
2.71
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