good bacteria concept , healthy intestine cartoon character on white background. gut microflora

anatomy bacillus bacteria bacteriology bacterium bacteroides bad bifidobacteria bifidus body care coli colon design digestion digestive dysbacteriosis dysbiosis enteric enterobacteria harmful health human icon illustration inspection intestinal intestine intestines lactic lactobacilli lactobacillus lactococcus medical medicine micro microflora microscope probiotics science streptococcus vector visceral