Immucell First Defense Bovine Bolus (Coronavirus-Escherichia coli antibody)

First Defense is a bolus which dissolves readily upon reaching the calf’s stomach, providing protective levels of antibodies to potential sites of intestinal infection. These highly specific antibodies serve to block enterotoxigenic E. coli adherence and interfere with coronavirus infection of intestinal epithelial cells, thereby reducing scours related morbidity and mortality.