police officer cartoon drawing of firmicutes wearing a blue hat

agent bacilli bacillus bacteria bacterial bacteriologic bacteriology bacterium cartoon character clostridiaceae cop copper cute detective emoticon emotion expression firmicutes funny guard happy heart illustration imagery infect magnification mascot medical microbe microbiologic microbiological micrograph microorganism plectridium police policeman profession prokaryote protect scientific shigella smile technique techniques tetanospasmin tetanus transmission vector