glass, agar, analysis, antibiotic, antibiotic resistance, antibiotic sensitivity, antimicrobial, bacterial, biology, blood, broiler, care, chemistry, coli, colony, culture, diffusion, disease, dish, drug, epidemic, experiment, health, healthcare, identification, infection, laboratory, media, medical, medium, microbial, microbiology, mueller hinton, organism, petri, pharmaceutical, plate, poultry, research, resistance, science, scientific, sensitivity, streptococcus, susceptibility, test, veterinary, zone