title: Neonatal calf diarrhea: purification and electron microscopy of a coronavirus-like agent.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D002417:Cattle; D002418:Cattle Diseases / Q000209:etiology* / Q000382:microbiology / Q000473:pathology; D002499:Centrifugation, Density Gradient; D003126:Colostrum; D003967:Diarrhea / Q000209:etiology / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D004926:Escherichia coli / Q000302:isolation & purification; D005243:Feces / Q000382:microbiology; D005856:Germ-Free Life; D007422:Intestines / Q000382:microbiology; D008722:Methods; D008854:Microscopy, Electron; D012328:RNA Viruses / Q000302:isolation & purification*