MINNEAPOLIS -- Researchers at the University of Minnesota made a breakthrough late last month in the fight against porcine epidemic diarrhea ... for less than $15 per serum sample submitted ...

Remaining amylases in serum, intestinal fluid, urine and saliva were of normal size (4–5S). The abnormal amylase was specifically precipitated with anti-IgA antiserum. Mercaptoethanol reduced ...

However, the role of IgA in providing mucosal protection and systemic Ig responses has not been fully established. Intramuscularly administered vaccines stimulate robust serum neutralizing ...