Newborn infants have little or no secretory IgA (SIgA) at birth. Earlier studies suggest that premature infants do not significantly differ from term babies in their rate of acquisition of SIgA.

Therefore we have studied the interactions of IgA and human monocyte monolayer cultures. Secretory IgA derived from human breast milk and/or IgA derived from an EBV B cell line were used in these ...

IgA antibodies should be helping you clear virus and protect your mucosal immune system. We show that for people who have persistent symptoms, you have lower and slower rates of secretory IgA ...