Ringo Vinda

"A parasite. Native to Ringo Vinda. Probaly in the canteen of water they both shared. It did cause the inhibitors to decay, once the parasite had taken hold."

- Supreme Chancellor Sheev Palpatine's "official" explanation of the erratic behaviors of CT-5555 and CT-5385 Ringo Vinda was a planet orbited by a ring-shaped space station that was controlled by the Galactic Republic until it was taken by the Confederacy of Independent Systems during the Clone Wars, which resulted in an extended campaign to retake the planet. However, Republic forces withdrew from Ringo Vinda when clone trooper CT-5385 executed Jedi Master Tiplar when Protocol 66 was accidentally triggered in his inhibitor chip, leaving the world under Separatist control. Officially, CT-5385's mental instability was caused by a parasitic infection native to Ringo Vinda that caused his inhibitor to decay and a vaccine was prepared to inoculate the other clones and prevent similar incidents in the future, hiding the true nature of Order 66.