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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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Elevated levels of plasma anti-SARS-CoV2 antibodies in COVID-19 mRNA vaccinated lactating individuals. Anti-SARS-CoV2 IgM levels in plasma of lactating individuals receiving BNT-162b2 (n=19) (A) and mRNA-1273 (n=13) (B) COVID-19 vaccines (RFU- relative fluorescent units, dashed line represents positive cut-off >50 RFU). Anti-SARS-CoV2 IgG levels in plasma of lactating individuals receiving BNT-162b2 (C) and mRNA-1273 (D) COVID-19 vaccines. After 1st dose samples were collected on the day of the second vaccine, and after 2nd dose samples were collect 4-10 weeks post 2nd dose. Asterisks represent p-values: *= p-value <0.05, **= p-value <0.01, ***= <0.001, ****= <0.0001 as determined by unpaired Mann-Whitney test.