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LaCourse SM, Wetzler EA, Aurelio MC, Escudero JN, Selke SS, Greninger AL, Goecker EA, Barnes SR, Arnould IS, Pérez-Osorio AC, Richardson BA, Kachikis A, Englund JA, Drake AL. Hybrid Immunity to Severe Acute Respiratory Syndrome Coronavirus 2 During Pregnancy Provides More Durable Infant Antibody Responses Compared to Natural Infection or Vaccination Alone. J Infect Dis 2024; 229:1241-1243. [PMID: 38285008 DOI: 10.1093/infdis/jiae046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 01/24/2024] [Indexed: 01/30/2024] Open
Affiliation(s)
- Sylvia M LaCourse
- Division of Allergy and Infectious Diseases, Department of Medicine
- Department of Global Health
- Department of Epidemiology
| | | | | | | | | | | | | | | | | | | | | | | | - Janet A Englund
- Department of Pediatrics, University of Washington
- Seattle Children's Research Institute, Seattle Children's Hospital, Seattle, Washington
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LaCourse SM, Wetzler EA, Aurelio MC, Escudero JN, Selke SS, Greninger AL, Goecker EA, Barnes SR, Arnould IS, Pérez-Osorio AC, Richardson BA, Kachikis A, Englund JA, Drake AL. Hybrid immunity to SARS-CoV-2 during pregnancy provides more durable infant antibody responses compared to natural infection alone. J Infect Dis 2023:jiad592. [PMID: 38128542 DOI: 10.1093/infdis/jiad592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/07/2023] [Accepted: 12/19/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Hybrid immunity (infection plus vaccination) may increase maternally-derived SARS-CoV-2 antibody responses and durability vs. infection alone. METHODS Prospective cohort of pregnant participants with prior SARS-CoV-2 infection (anti-nucleocapsid IgG+, RT-PCR + or antigen+) and their infants had blood collected in pregnancy, delivery/birth, and postpartum tested for anti-spike (anti-S) IgG and neutralizing antibodies (neutAb). RESULTS Among 107 participants at enrollment, 40% were unvaccinated and 60% were vaccinated (received ≥1 dose); 102 had previous SARS-CoV-2 infection in pregnancy (median 19 weeks gestation); 5 were diagnosed just prior to prior to pregnancy (median 8 weeks). At delivery, fewer unvaccinated participants (87% anti-S IgG+, 86% neutAb) and their infants (86% anti-S IgG+, 75% neutAb) had anti-S IgG + or neutAb compared to vaccinated participants and their infants (100%, p ≤ 0.01 for all). By 3-6 months postpartum, 50% of infants of unvaccinated participants were anti-S IgG + and 14% had neutAb, vs. 100% among infants of vaccinated participants (all p < 0.01), with lower median antibody responses (anti-S IgG log10 1.95 vs. 3.84 AU/ml, p < 0.01; neutAb log10 1:1.34 vs. 1:3.20, p = 0.11). CONCLUSIONS In pregnant people with prior SARS-CoV-2, vaccination before delivery provided more durable maternally-derived antibody responses than infection alone in infants through 6 months.
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Affiliation(s)
- Sylvia M LaCourse
- Department of Medicine, Division of Allergy and Infectious Diseases, University of Washington, Seattle, WA, USA
- Department of Global Health, University of Washington, Seattle, WA, USA
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Erica A Wetzler
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Morgan C Aurelio
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Jaclyn N Escudero
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Stacy S Selke
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Alexander L Greninger
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Erin A Goecker
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Sarina R Barnes
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Isabel S Arnould
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Ailyn C Pérez-Osorio
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Barbra A Richardson
- Department of Global Health, University of Washington, Seattle, WA, USA
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Alisa Kachikis
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA
| | - Janet A Englund
- Department of Pediatrics, University of Washington, Seattle, WA, USA
- Seattle Children's Research Institute, Seattle Children's Hospital, Seattle, WA, USA
| | - Alison L Drake
- Department of Global Health, University of Washington, Seattle, WA, USA
- Department of Epidemiology, University of Washington, Seattle, WA, USA
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