brucella bacteria, the causative agent of brucellosis in cattle and humans, 3d

abortus animal background bacteria bacterial bacteriology bacterium brucella brucellosis canis colorful contaminated cow dairy disease domestic epidemic fever gramnegative ill illustration infection isolated malta melitensis microbe microbes microbiology microorganisms milk photo photograph pleomorphic products rodshaped spherical suis transmission veterinary white zoology zoonosis zoonotic