There is also a variant strain of the virus named t-Alexia that is a diluted form of the virus created during its period of cryogenesis in its main host, Alexia Ashford.Īccording to the series timeline, the t-Veronica virus was created by Alexia Ashford through synthesis of the Progenitor virus and the gene of a queen ant that contained an "ancient virus". The t-Veronica virus is the main virus used in Resident Evil Code: Veronica, and is responsible for the mutation of several enemies. There was also an unnamed vaccine being developed under the Raccoon General Hospital in Resident Evil 3 that was used to save Jill Valentine. AT1521 was Umbrella's first official attempt at a vaccine, but the original sample was destroyed. Umbrella also attempted to develop several other vaccines t-vaccine was created by WilPharma, but an employee was selling it, as well as t- and G-virus samples, on the black market to bio-terrorists. In Resident Evil, it is revealed that if the Anti-virus is taken too late, the t-virus will cause it to be rejected. The non-canon Live-action film series also present a preventative vaccine known simply as the Anti-virus, which must be taken within several hours after the initial infection. The Daylight is the only t-virus vaccine, but must be taken before transformation. The virus also damages the hypothalamus, which results in a flood of neurotransmitters, enzymes, and hormones which induce a psychopathic rage and hunger in the host. Creatures with genetic structures different than humans generally show less severe mutations, and usually only increase in size.Īs a side effect of the virus' consumption of its host, specifically its digestion of the host's frontal lobes, all hosts suffer from greatly increased aggression.
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The mutations are produced when the virus incorporates itself into the host's genetic code and considerably alters it. However, this process has the drawback of severe necrosis in the host, and produces the distinctive rotted appearance of most B.O.W.s. By doing this, most of the body's systems, such as the circulatory or respiratory systems, are made redundant. It animates dead tissue by killing and replacing any mitochondria in infected cells, and then combining with these cells to produce enough energy for motor and lower brain functions.
The Tyrant virus allegedly operates similarly to most other viruses, but also has the abilities to animate dead tissue, to substantially mutate its host, and to infect nearly any tissue in any type of host. Through this synthesis, the photosensitivity of the early Progenitor strain was replaced with pyrosensitivity, a property that can be seen in most of the series' enemies. James Marcus succeeded in creating the Tyrant virus at the Arklay Management Training Facility on September 19th, 1978 through synthesis of the Progenitor virus and leech DNA. The Tyrant virus, or t-virus, is the main virus used by Umbrella, and is responsible for the creation of most of their B.O.W.s.Īccording to reports in the game, Dr. In order to enhance the virus's mutagenic properties, Umbrella created a variant of it through synthesizing it with the Ebola virus, but this strain retained Ebola's photosensitivity. In hosts with a genetic structure less complex than humans, mutations are less pronounced, and usually restricted to increases in size and aggression. It produces rapid and uncontrollable mutation in a host's genetic code, but the mutations were not coordinated enough to produce effective B.O.W.s. The only known survivor of an experiment involving Progenitor is Lisa Trevor, who bonded with the virus in a way that baffled everyone involved with the project. Though Ashford wanted to use the virus' regenerative abilities to help the handicapped, Marcus and Spencer wanted to use it for the bio-weapons project, and after Ashford's death in 1968, they were able to begin their desired research. The Progenitor virus, also known as the Founder or Mother virus, is the first of the mutagenic viruses, and the basis for all of the ones that followed.Īccording to the series timeline, it was discovered on December 4, 1967, by Dr. On December 4, 1967, the three men succeeded, with the discovery of the Progenitor virus and from this came the birth of the Umbrella Corporation. This would involve finding or creating a viral agent that could not only be controlled, but could be used to create new bio-weapons by infecting a host organism and mutating it into a powerful creature that could act as a soldier and follow orders, as well as spread the virus that created it into enemy territory. James Marcus began looking into viral mutation sometime in the middle of the twentieth century with the intent on finding a way to create the perfect biological weapon. According to the series timeline, Umbrella Corporation founders Ozwell E.
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