Velderix Riehn'va

Velderix Riehn’va was a Romulan virulent disease that was given the name "The Usurper" which struck at the arteries in the brain. This resulted in the weakening of the walls and bringing about multiple aneurysms. If left undiscovered and not treated, the ruptures brought about an instant loss of life.

Senator Xarian Dor collapsed at the Hall of State in the late 24th century where doctors at the Ki Baratan Medical Center stated that he had seemingly died from Velderix Riehn'va and confirmed that it was an isolated case with no one else being infected by the disease.