plasmid circular dna and escherichia coli bacteria

pathogen scattered microbiology biology science black background microbiome research laboratory microscope environment three dimensional microscopic animal micro organism magnification transmission infectious disease close-up coli rod shape parasitic cell flagellum biological medical condition food poisoning illness healthcare medicine scientific technique swimming probiotic levitation plasmid circle dna genetic mutation modification cloning screening gene therapy escherichia bacteria coli bacteria cell flagella pathogen microscopic plasmid recombinant circular dna helix recombination transformation closeup round spiral resistance structure bacillus germs close 3d microorganism scattered microbiology biology rod-shaped probiotics science parasite pathogenic infection background escherichia magnifying disease microbiome poisoning isolated research pathology