The Blue Shadow Virus was a type of deadly virus that was released into the galaxy through water.
History[]
It would eventually become extinct sometime before the Separatist Crisis, but would later return into the galaxy by the Confederacy of Independent Systems as a weapon during the Clone Wars, only to be stopped by the Galactic Republic and the Jedi Order.
Appearances[]
Blue Shadow Virus (first appearance)- Mystery of a Thousand Moons