Karatos Plague
Jango Fett used this deadly virus to try and gain the upper hand in his negotiations with Darth Tyranus, shortly before the Battle of Naboo. He carried the spores on his armor, and released them into the air as soon as they were alone. Tyranus, however, used his mastery of the Force to alter his internal chemistry to defeat the virus. Jango was immune to the Karatos Plague, which was native to Concord Dawn, since he had been inoculated against it as a child.