About

About First Defense/ImmuCell Corp. The best vaccine for scours isn’t a vaccine. It’s antibodies. How do we know, you ask? We’ve been working in diarrhea for 30 years. We’ve seen what doesn’t work, and what does. Our First Defense® line of antibody products gives newborn calves immediate immunity from scours pathogens E.coli, rotavirus and coronavirus. There’s no reliance on dam- or calf-level vaccines to stimulate an antibody response. One dose at birth covers them. No Needles. No Scours. No Doubt. FirstDefenseCalfHealth.com