title: Tissue-culture-propagated mycoplasma for the control of chronic respiratory disease.
mesh_terms: D000818:Animals; D001428:Bacterial Vaccines; D046508:Culture Techniques; D009174:Mycoplasma / Q000302:isolation & purification*; D009175:Mycoplasma Infections / Q000517:prevention & control / Q000662:veterinary*; D011201:Poultry Diseases / Q000517:prevention & control*; D012141:Respiratory Tract Infections / Q000517:prevention & control / Q000662:veterinary*
chemical_list: D001428:Bacterial Vaccines