Description Vira Shield is an effective, broad-spectrum vaccine that helps protect cattle against respiratory and reproductive diseases. It contains 6 disease-fighting antigens in one, ready-to-use bottle. You can use Vira Shield on every cow, every time, including pregnant cows and calves nursing pregnant cows, regardless of vaccination history. Vira Shield is the first vaccine to offer both Type 1 and Type 2 BVD protection. The most complete solution for BVD, Vira Shield contains NCP Type 1, NCP Type 2 and CP Type 1.