a mascot of staphylococcus aureus having confident gesture

acquired bacteria bacterial bacteriology bacterium biological biology cartoon character cute dangerous disease emoticon emotion expression funny glow grin happiness happy illustration laugh mascot methicillin microbe microbiological microbiology micrograph microorganism mrsa mug organism pathogen pathogenic pathology protist resistant shine sick simper smile smiley smirk smirking staphylococcus staphylocossu transmission vector virus