good bacteria and bad bacteria cartoon characters on white. set of funny bacterias germs in flat cartoon style

acid bacteria bacteriologist bacteriology bacterium bacteroides bad bifidobacteria bifidobacterium bifidus body care cartoon character clostridium coli dietary enteric enterobacteria escherichia fiber flora germ good gut harmful health healthy hormone human illustration image infographics inspection intestinal lactic lactobacillus large laureus medical medicine micro opportunistic organ pathogen prebiotics probiotics sample simple small staphylococcus streptococcus vector