spore-forming bacteria clostridium

anaerobes anaerobic antibiotic bacteria bacterium biological biology botulism botulium cells closeup clostridia clostridium difficile disease experiment fever gangrene gas human illness illustration infection infections macro medical medicine micro microbe microbiology microorganisms microscope microscopic nosocomial organism pathology perfringens research resistance resistant rodshaped science scientific sick sickness spores tetani tetanus wound