pathogenic microflora in the intestine. dysbacteriosis. dysbiosis. killed the good bacteria flora in the colon

anatomy background bacteria bacteriology bacterium bacteroides bad bifidobacteria bifidobacterium biology cell coli colitis colon digestion dysbacteriosis dysbeosis enterobacteria flora giardia good gut health human illustration infection inflammation intestinal intestine lactobacillus medical medicine microbe microbial microflora microorganism microscopic organ parasite pathogen pathogenic probiotic science streptococcus vector virus