1
|
Khalifeh M, Rubin LG, Dayya D, Cerise J, Skinner K, Maloney M, Walworth C, Petropoulos CJ, Wrin T, Chun K, Weinberger B. SARS-CoV-2 neutralizing antibody titers in maternal blood, umbilical cord blood, and breast milk. J Perinatol 2024; 44:28-34. [PMID: 38092879 DOI: 10.1038/s41372-023-01843-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/16/2023] [Accepted: 11/24/2023] [Indexed: 01/13/2024]
Abstract
OBJECTIVE We quantified neutralizing SARS-CoV-2 antibody against spike protein (nAb) levels after vaccination and SARS-CoV-2 infection in maternal serum, cord blood, and breast milk and determined whether they correlate with levels of spike protein binding antibody. STUDY DESIGN Women (n = 100) were enrolled on admission for delivery. Previous SARS-CoV-2 infection was defined by anti-nucleocapsid antibodies. Levels of nAb and binding antibodies against spike receptor binding domain were measured in maternal blood, cord blood, and milk. RESULTS Maternal nAb levels were higher after vaccine and infection than vaccine alone but waned rapidly. Levels of nAb in cord blood and milk correlated with maternal levels and were higher in cord blood than maternal. Spike protein binding antibody levels correlated with nAb. CONCLUSION SARS-CoV-2 vaccination near delivery may boost antibody-mediated immunity in the peripartum period. Neutralizing antibodies are passed transplacentally and into milk. Spike protein binding antibody may be a feasible proxy for nAb.
Collapse
Affiliation(s)
- Mazen Khalifeh
- Division of Neonatology and Newborn Medicine, Phelps Hospital, Northwell Health, Sleepy Hollow, NY, USA
| | - Lorry G Rubin
- Division of Pediatric Infectious Diseases, Cohen Children's Medical Center, Northwell Health and Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, NY, USA
| | - David Dayya
- Division of Undersea and Hyperbaric Medicine, Department of Surgery, Phelps Hospital, Northwell Health, Sleepy Hollow, NY, USA
| | - Jane Cerise
- Biostatistics Unit, Office of Academic Affairs, Northwell School, New Hyde Park, NY, USA
| | - Karen Skinner
- Division of Neonatology and Newborn Medicine, Phelps Hospital, Northwell Health, Sleepy Hollow, NY, USA
| | - Mona Maloney
- Division of Neonatology and Newborn Medicine, Phelps Hospital, Northwell Health, Sleepy Hollow, NY, USA
| | - Charles Walworth
- Labcorp-Monogram Biosciences, South San Francisco, CA, 94080, USA
| | | | - Terri Wrin
- Labcorp-Monogram Biosciences, South San Francisco, CA, 94080, USA
| | - Kelly Chun
- Labcorp-Esoterix, Calabasas, CA, 91301, USA
| | - Barry Weinberger
- Division of Neonatal-Perinatal Medicine, Cohen Children's Medical Center, Northwell Health and Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, NY, USA.
| |
Collapse
|