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- Title
Human Milk Antibody Response After Combining Two Different COVID-19 Vaccines: Mix-and-Match.
- Authors
Mulleners, Sien J.; Juncker, Hannah G.; van Gils, Marit J.; van Goudoever, Johannes B.; van Keulen, Britt J.
- Abstract
Background: SARS-CoV-2-specific antibodies are secreted into human milk after women are vaccinated against COVID-19, which might protect the breastfed infant. Due to several reports of severe side-effects of the Oxford-AstraZeneca ChAdOx1 (AZD1222) vaccine against COVID-19, some lactating women followed a heterologous vaccination schedule consisting of the first dose of AZD1222 and a second dose of an mRNA-based vaccine. However, it is unclear whether this generates a significant SARS-CoV-2-specific antibody response in human milk. Main Issue: To quantify the SARS-CoV-2-specific antibody response in human milk of two lactating women receiving a heterologous vaccination schedules: AZD1222 and mRNA-based vaccine (Pfizer-BioNTech [BNT162b2] and Moderna [mRNA-1273]). Management: Both participants collected 16 samples of human milk longitudinally. SARS-CoV-2-specific Immunoglobulin A was measured using an enzyme-linked immunosorbent assay. Conclusion: Based on our results, it could be suggested that heterologous vaccination with AZD1222 and an mRNA-based vaccine can elicit a significant SARS-CoV-2 specific IgA response in human milk.
- Subjects
IMMUNOGLOBULIN analysis; LACTATION; BREAST milk; COVID-19 vaccines; HEALTH outcome assessment; ANTIBODY formation; COMPARATIVE studies; CASE studies; ENZYME-linked immunosorbent assay; RESEARCH funding
- Publication
Journal of Human Lactation, 2022, Vol 38, Issue 3, p401
- ISSN
0890-3344
- Publication type
Article
- DOI
10.1177/08903344221103260