brucella bacteria, 3d . gram-negative bacteria that cause brucellosis

bacteria bacterial bacteriology bacterium brucella abortus melitensis suis canis brucellosis malta fever microorganisms microbe microbiology transmission milk ill disease infection gramnegative pleomorphic spherical rodshaped zoonosis zoonotic epidemic colorful 3d illustration cns central nervous system infectious parasite bug medical medicine research science scientific arthritis