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Transfer of anti-ovalbumin (OVA) IgA (a) and IgG (b) antibodies from an immunized sow to its offspring. Kinetics of serum anti-OVA IgA and IgG antibody concentrations from eight piglets (OVA+P) from an OVA-seropositive sow (OVA+S). Each symbol represents the mean (± SEM) of the antibody concentration of eight piglets, detected by ELISA. Note that graph scales differ.
