Poliovirus, a human enterovirus of the family Picornaviridae
These 12 Viruses Look Beautiful Up Close But Would Kill You If They Could: Polio
Kidney stone under the microscope, no wonder it hurt Mum!
Virus closeup under microscope
Widely publicized as a "microscopic image of a virus", this is actually.... a lampshade.
Microscopic - Lungs | Flickr - Photo Sharing!
@kim Seed - Electron microscope images by FEI
E. coli negatively stained with 1% Uranyl acetate. Microscopic image
Bacteria under a microscope.