What Is a Computer Virus? A computer virus is a program. Like other programs, it’s defined by what it does, and the big thing a virus does is replicate itself. The virus exists as a collection of ...

Ever wondered what a virus looks like up close? One post circulating on social media claims it has just the picture. "Real Image of a T4 bacteriophage (a virus) via electron microscope," reads a ...

A computer-generated 3D rendering of a flu virus. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the ...