Virus lipid bilayer image.   A virus is a submicroscopic agent that replicates only inside the living cells of an organism. Viruses interact with all life forms, from animals and plants to microorganisms, including bacteria and archaea.  Polymime is a UK based animation company offering royalty free medical stock images and medical stock videos. Other services including 3D rending, medical animation interactive 3D, vfx and more.