The role of immunobiological conditions in E. coli-disease of newborn calves.
D000818:Animals; D000831:Animals, Newborn / Q000276:immunology*; D002417:Cattle; D002418:Cattle Diseases / Q000276:immunology*; D004926:Escherichia coli / Q000302:isolation & purification; D004927:Escherichia coli Infections / Q000662:veterinary*; D007106:Immune Sera; D007410:Intestinal Diseases / Q000662:veterinary; D014115:Toxemia / Q000662:veterinary
D007106:Immune Sera