Pestilence

Viral touch: Pestilence can produce a bio-hazardous agent from her body that acts as a crippling virus in the bodies of other people. The virus is incredibly potent; even a glancing contact with her skin or a few molecules of the virus clinging to Kitty Pryde's intangible form were enough to cause infection. The virus causes physical weakness, fainting, nausea, fever, and delirium. It can be treated but will otherwise be lethal to anyone infected.