probiotics microbiome concept. bifidobacterium, lactobacillus, streptococcus thermophilus, lactococcus

microbiome microbiota set circle bacillus bacteria icon label health microbiology vector microbe bacterium colony germ probiotic medicine cell microscopic supplements yogurt medical casei organism food banner bacteriology bacterial lactobacillus color bifidum bifidobacteria streptococcus thermophilus micro positive biological longum gut propionibacterium fermentation brochure good lactic cover lactococcus bifidobacterium acidophilus flat simple