Viral Agents

The "Nemesis-T Virus" is a variant strain of the T-virus created after synthesis with the Nemesis parasite and secreted by a creature implanted with the parasite.

Progenitor Virus

The original 'mother' virus discovered by Ozwell E. Spencer, Edward Ashford and James Marcus in 1966. It became the basis for a number of viruses, the most prominent of which being the T-virus.

T-Virus

Known as "Tyrant". Created by Dr. James Marcus in 1977, the T-virus opened up new avenues of research for Umbrella and spawned a number of derivatives and variants. A cornerstone of Umbrella's research.

G-Virus

Known as "Gene". A product of the NE-alpha parasite merging with the body of Lisa Trevor. It was discovered by Dr. William Birkin in the late 1980s and was considered by many to be the ultimate biological weapon.

T-Veronica Virus

The original Progenitor integrated with another ancient virus derived from a fossilised queen ant. It was created by Alexia Ashford, who became the only successful recipient of the virus.

T+G-Virus

A combination of the "T" and "G" viruses. It was developed by Umbrella Europe in an attempt to combine the attributes of both viruses, and to help stabilise the effects of "G" by integrating it with a T-virus antibody.

Wesker Virus

An unknown virus responsible for the revival of Albert Wesker from his apparent 'death' at the hands of the Tyrant (T-002). It was taken from Umbrella's mutation stocks, though its real identity remains a mystery.