title: Biological properties of Norwalk agent of acute infectious nonbacterial gastroenteritis.
mesh_terms: D000143:Acids; D000284:Administration, Oral; D000818:Animals; D001681:Biological Assay; D003967:Diarrhea / Q000209:etiology; D005019:Ethyl Ethers; D005243:Feces; D005759:Gastroenteritis / Q000209:etiology* / Q000276:immunology; D006168:Guinea Pigs; D000882:Haplorhini; D006358:Hot Temperature; D006805:Human Experimentation; D006801:Humans; D007109:Immunity; D007422:Intestines / Q000196:embryology; D008251:Macaca; D008722:Methods; D051379:Mice; D008851:Micropore Filters; D009666:Nose; D009924:Organ Culture Techniques; D011817:Rabbits; D013045:Species Specificity; D014839:Vomiting / Q000209:etiology
chemical_list: D000143:Acids; D005019:Ethyl Ethers