There a few viruses in RE, one being the T-Virus, which if injected causes the person to mutate into a Licker... if it gets released into the air, it becomes a viral gas, and then when people die, they become Zombies carrying the virus.
The G-Virus is a form of the T-Virus but if injected then they turn into monsters like the monster William birkin turned into off resident evil 2.
The Uroboros virus took control and ate your body away and controlled everything through the environment, eating flesh as it passes. This is like what Excella turned into in RE5
Las Plagas is another virus inside a needle, but i has an egg inside, and when injected inside someone near the stomach and when its grown it kills then and reanimates them and gives the infected brains and knowledge how to use weapons.
They're are the Tyrant Virus (T-Virus) and Gene Virus (G-Virus), they're created for biological weaponary.
The $w@qq virus
Resident Evil 4 is completely unrelated to the T-virus; instead, the "infection" is a different parasite called Las Plagas (the plague).
As far as I know Resident Evil 0, 1, 2 and 3 are the games that are about the T-Virus.
For information about the Resident Evil T-Virus, Planet Resident Evil has a complete explanation of the history of the virus and how it is expanded upon in each game.
This has been updated, since there is another Resident Evil live action film coming out, but there is also CGI as well. This include: Resident Evil (first movie) Resident Evil: Apocalypse Resident Evil: Extinction Residnet Evil: Afterlife And the new one that is coming out is called, Resident Evil Retribution. The two CGI ones are called Resident Evil Degeneration and Damnation (which is sure to come out soon)
Rabies Virus.
There is: * resident evil 1 * resident evil 2: apocalypse * resident evil 3: extinction these are all the ones starring Milla Jovovich. and another is being released in 2010 called resident evil afterlife But there is also an anime called * resident evil: degeneration
Umbrella Corp.
Yes there called Resident Evil and Resident Evil 2. There for gamecube and I believe playstation.
Uroboros-new virus
It was called Resident Evil. Director's Cut is just a somewhat updated version of it.
The original title in Japan is called Biohazard. The reason why it's called Resident Evil in America is that the was a game also called Biohazard so they changed the title to avoid confusion.
It was the movie called "Resident Evil", and it was made in 2002.