Ancient nanovirus

The Ancient nanovirus was an example of nanotechnology created by the Lantean's during their tenure in the Pegasus galaxy.

Overview
The nanovirus was an example of nanotechnology which operated on a nanite scale and was around a billiont of a millimeter. They were in essence microscopic machine's that were able to carry out very specific task's uited for their size. They were no bigger than a single celled organism and instead of using theirabilities to cure disease or mend blood vessels, the nanovirus work's to terrorise it's victim's by tapping into their visual cortex and rupture an artery in their brain.

The virus was capable of infecting others along the way but were incapable of multiplying. This meant that once infecting numerous target's, their capabilities diminished as they spread themselves too thin and work at a reduced rate. They were programmed only to infect Human's and did not harm those with Ancient DNA. The nanovirus was essentially a machine run by a computer; one that was vulnerable to an electromagnetic pulse.

Victim's of these nanite's begin to encounter ghostly apparitation's of death and hear shrill-like sound's which highlight's the fact that the person is nearing death as the nanite's begin their final work in the brain.

History
During the Ancient's war against the Wraith, they sought to produce smaller machine's that were capable of defeating their enemy. Thus, they created the nanovirus with the intention of infecting the Wraith who would be destroyed from within. This meant that a section of Atlantis was put aside to serve as a viral lab. The failure of their experiment meant that the nanovirus was abandoned and the laboratory was closed down. The Atlantis Expedition accidently unleashed the virus which killed a number of them until a generator was detonated in close orbit which destroyed the nanomachine's. At the time, the Expedition did not know who created the virus.

The nanovirus was a precursor to the Asuran's which evolved to the point that they took on Human form.