title: Mycoplasma gallisepticum in a commercial laryngotracheitis vaccine.
mesh_terms: D000818:Animals; D004340:Drug Contamination; D006386:Hemagglutination Tests; D006566:Herpesviridae Infections / Q000517:prevention & control / Q000662:veterinary; D007827:Laryngitis / Q000662:veterinary; D009174:Mycoplasma / Q000302:isolation & purification*; D009175:Mycoplasma Infections / Q000517:prevention & control; D011201:Poultry Diseases / Q000517:prevention & control; D014765:Viral Vaccines
chemical_list: D014765:Viral Vaccines