micro bacterium and therapeutic bacteria organisms

acidophilus bacillus background bacteria bacterium bifidobacteria biology biotechnology cancer cell closeup design disease dna ebola flu food germ good graphic healthy hepatitis infection infectious influenza isolated lactic lactobacilli lactobacillus macro membrane microbe microbiology microbiota microscopic milk molecule nucleus organisms probiotic probiotics salmonella streptococcus therapeutic vaccine vector virus yoghurt yogurt