title: Assay of antibiotic activity in live-virus poultry vaccines with micro-techniques.
mesh_terms: D000818:Animals; D002645:Chickens; D007201:Indicator Dilution Techniques; D008826:Microbial Sensitivity Tests; D008832:Microchemistry / Q000295:instrumentation; D010406:Penicillins / Q000494:pharmacology / Q000592:standards*; D012505:Sarcina / Q000187:drug effects / Q000254:growth & development; D014765:Viral Vaccines / Q000592:standards*
chemical_list: D010406:Penicillins; D014765:Viral Vaccines