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Rosenberg-Friedman M, Kigel A, Bahar Y, Werbner M, Alter J, Yogev Y, Dror Y, Lubetzky R, Dessau M, Gal-Tanamy M, Many A, Wine Y. BNT162b2 mRNA vaccine elicited antibody response in blood and milk of breastfeeding women. Nat Commun 2021; 12:6222. [PMID: 34711825 PMCID: PMC8553805 DOI: 10.1038/s41467-021-26507-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 10/05/2021] [Indexed: 11/09/2022] Open
Abstract
The importance of breastmilk in postnatal life lies in the strong association between breastfeeding and the reduction in the risk of infection and infection-related infant mortality. However, data regarding the induction and dynamics of breastmilk antibodies following administration of the Pfizer-BioNTech BNT162b2 COVID-19 mRNA vaccine is scarce, as pregnant and lactating women were not included in the initial vaccine clinical trials. Here, we investigate the dynamics of the vaccine-specific antibody response in breastmilk and serum in a prospective cohort of ten lactating women who received two doses of the mRNA vaccine. We show that the antibody response is rapid and highly synchronized between breastmilk and serum, reaching stabilization 14 days after the second dose. The response in breastmilk includes both IgG and IgA with neutralization capacity.
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Affiliation(s)
- Michal Rosenberg-Friedman
- Department of Obstetrics and Gynecology, Lis Maternity & Women's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Aya Kigel
- The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Yael Bahar
- The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Michal Werbner
- Molecular Virology Lab, The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Joel Alter
- The Laboratory of Structural Biology of Infectious Diseases, The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Yariv Yogev
- Department of Obstetrics and Gynecology, Lis Maternity & Women's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yael Dror
- The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Ronit Lubetzky
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Pediatrics, Dana Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Moshe Dessau
- The Laboratory of Structural Biology of Infectious Diseases, The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Meital Gal-Tanamy
- Molecular Virology Lab, The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Ariel Many
- Department of Obstetrics and Gynecology, Lis Maternity & Women's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yariv Wine
- The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel.
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