bifidobacteria. bifidobacterium infantis. probiotic, lactobacillus, bifidobacterium, probiotic, prebiotic. infographics

acidophilus bacillus background bacteria bacterial bacteriology bacterium bad bifidobacteria bifidobacterium biological biology concept contain design digestion element fermentation flora germ graphic health healthy human icon illustration infection intestinal intestine isolated label lactic lactobacillus medical microbe microbiology microflora microorganism milk molecule organism positive prebiotic probiotic science tablet useful vector yoghurt yogurt