In 214 BBY, an outbreak of the plague-like Bordal Contagion occurred on the remote planet Bordal. Republic researchers prompted to develop an antidote on Tauber. Nevertheless, transports carrying six million doses were attacked by the Fujari pirates and millions of Bordali died.
The droid EV-A4-D originally worked as a supervisor droid in a hospital here. After he ordered his medical droids to operate on patients without anaesthetic he was recalled and found employment as General Grievous' medical droid on the third moon of Vassk.