[Name] Blue Shadow Virus [Source] Star Wars: The Clone Wars [Symptoms] 
A lethal virus capable of killing a planet's entire population. Eradicated prior to the Clone Wars, it was recreated by the insane Separatist scientist Dr. Nuvo Vindi as a weapon against the Republic. Can only be cured with the root of the reeksa plant. Symptoms include muscular weakness, cough, and fainting, and if not cured in time, the victim will die. In its original liquid-bound form, it could kill a life-form almost instantly.