Maternal antibodies in breast milk survive infant digestion to provide immunity.
the verdict
SUPPORTED
the evidence backs this
confidence 78/100
Maternal antibodies present in breast milk, particularly secretory IgA, possess mechanisms that allow them to partially survive the harsh environment of the infant gastrointestinal tract to provide mucosal immunity.
Evidence for · 2
Survival of vaccine-induced human milk SARS-CoV-2 IgG and IgA immunoglobulins across simulated human infant gastrointestinal digestion
2021 · cited by 2
Paper 1 demonstrates that certain vaccine-induced antibodies (such as IgA) in human milk can partially resist the gastric phase of infant digestion.
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More for · 1
Breast feeding and the intestinal microflora of the infant--implications for protection against infectious diseases.
2000 · cited by 0
Paper 7 notes that secretory IgA in breast milk protects infants by coating intestinal bacteria and blocking interactions without being completely destroyed.