Mutare Vampiris

Mutare Vampiris, Or mutated vampirism, is the disease that leads to a twisted and sinister form of vampirism, that appears in the sixth era of industrial Tamriel.

Contraction
Contracting this form of vampirism is the same as contracting the normal form of vampirism. Getting assaulted by a vampire carrying this vampirism is extremely likely to succeed, if the one who wants to contract it doesn't get killed in the process.

The disease, in particular, is pretty rare, and only appears to have afflicted three individuals - Sander Lafayette contracted it from Jack Jackson, who in turn contracted it from a mysterious nobleman.

It takes about 72 hours to fully progress the disease, just as normal vampirism.

Abilities
Aside from having the normal abilities that normal vampires have, which are And so on, this form of vampirism, upon completion of the progress to acquire the full version of the disease, also includes
 * Increased resistance against frost
 * Vampiric strenght (which increases speed, endurance, and strenght)
 * Immunity to disease
 * Immunity to poison
 * Vampiric seduction (intimidate / persuade individuals)
 * Night Vision
 * Nightstalker's footsteps (increases sneak)
 * Embrace of Shadows
 * etc.
 * Regenerating limbs - in either a matter of seconds or minutes.
 * Somewhat increased resistance against fire
 * Regenerating either health, magicka or stamina in daylight (never two or more of these at the same time)
 * Somewhat increased resistance against frost
 * A heightened sense of smell
 * Increased instincts and reflexes

Trivia

 * "Mutare" is a Latin verb, which means "to change".
 * The disease is very similar to Deadpool and Wolverine's healing factors.
 * It is unknown what the origins of this disease are, even to Sander and Jackson.
 * It is unknown how many people are currently afflicted with the disease.