PRIOR2 virus

Ori plague, (or Prior plague) a sickness that spreads through contact between people and is triggered by Priors of the Ori.

Appearences
A Prior used this on the planet P8X-412 to get their devotion and obedience to the Ori, which they ultimately got (SG1: "The Powers That Be"). They also infected Lieutenant Fisher with this plague as a carrier to Earth (SG1: "The Fourth Horseman, Part 1").

Characteristics
It is a multi-resistent virus that spreads through direct or indirect contact. Earth has no cure for this very lethal sickness as of this date. The Alterans has the possibility to cure from this sickness, but because of their non-interference policy, they won't (SG1: "The Fourth Horseman, Part 1").