Research Letter

SARS-CoV-2 vaccine booster elicits robust prolonged maternal antibody responses and passive transfer to the offspring via the placenta and breastmilk

N.M. and I.M. contributed equally to this study.

The authors report no conflict of interest.

This study was supported by grants from the National Institutes of Health under grant numbers R01AI145910 (to I.M.) and R01AI142841 (to I.M.). The funding source had no involvement in the study design; the collection, analysis, and interpretation of data; in the writing of the report; and in the decision to submit the article for publication.

This study was presented at the 50th Annual Autumn Immunology Conference of Autumn Immunology, Inc, Chicago, IL, November 18–21, 2022.