Air Dome Laboratory Incident

This T-virus outbreak was caused by an explosion of a bomb and the explosion broke open virus sample and infected the research staff.

The Cause
The bomb was set up by Frederic Downing to fake his own death. Once it exploded the virus contaminated the building. Besides Frederic, The only other survivor was Claire Redfield.

The G-virus
Before the bomb went off, Frederic gave Curtis Miller the G-virus. After Angela Miller found Curtis he already infected himself with the G-Virus. Then he became a Monster. Then he killed the Marines that were there.

The T-Virus
After all this zombies overran the reseach facility. The facility activated the self-destruct system and incenerated the building. But afterall this happened Tricell, Inc. purchesed Wilpharma.