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. 2021 Nov 3;12:777103. doi: 10.3389/fimmu.2021.777103

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Copyright © 2021 Golan, Prahl, Cassidy, Gay, Wu, Jigmeddagva, Lin, Gonzalez, Basilio, Chidboy, Warrier, Buarpung, Li, Murtha, Asiodu, Ahituv, Flaherman and Gaw

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Infants anti-SARS-CoV2 IgG levels after maternal vaccination during lactation. IgG levels were measured in blood samples of infants and mothers 61 days to 1 year postpartum, 61-129 days after 1st maternal vaccine administration. Maternal and infant samples were collected in the same week (except in one case in which the maternal sample was collected 18 days prior to the infant sample). (RFU- relative fluorescent units, dashed line represents positive cut-off >50 RFU). Sample characteristics and individual antibodies levels are presented in Table S4.