poster of intestinal flora gut health concept with bacteria and probiotics icons on white background

bacillus background bacteria bacterial bacteriology bacterium bad bifidobacteria bifidobacterium biological coli colon color colored concept contain design digestion digestive enteric flat flora germ good graphic gut harmful health healthy human illustration infection internal intestinal intestine lactobacillus medical medicine microbe microbiology microflora microorganism microscopic organ prebiotic probiotic set style useful vector