probiotic bacteria set in circle composition with lettering word. gut microbiota with healthy prebiotic bacillus

lactic microbe medicine microbiome probiotic fermentation circle round germ bifidobacterium bacillus bifidobacteria bacteria bifidum bacterium acidophilus lactobacillus vector bacteriology banner health food cover colony closeup presentation advertising template microscopic yoghurt longum bacterial positive microbiology flyer card life supplements healthy poster package propionibacterium medical thermophilus isolated therapeutic brochure flat simple lettering