Use Fusogard - 250 ds Vial to protect cattle against footrot infections caused by F. necrophorum bacteria. This vaccine is the first one developed specifically for cattle, and it helps prevent footrot infections and liver abscesses. Footrot can cause swelling and lameness that results in a loss of production. Help prevent that by vaccinating your cattle with Fusogard. This product is a vaccine, not an antibiotic. Please Note: This product requires overnight expedited shipping and ships Monday through Thursday. During summer months, the purchase of 1 or 2 additional ice packs is advised.