Most abundant immunoglobulin present in breast milk?
High-Yield Explanation
Most abundant type of Ig = IgA > IgD > IgG, IgM & IgE Anti-infective factors present in breast milk are: IgA (ratio of IgA: IgG is 100:1) Lymphocytes Anti- streptococcal factor Lysosome Lactoferrin Living cells.