| Name |
Description |
| Rushton Infection [1] |
Rushton Infection killed Jeremy Astor's father in 2371. [1] |
| Rugalan Fever [2] |
Deadly disease which Audrid Dax's daughter Neema once suffered from. [2] |
| Rudellian Plague [3] |
Disease which the Cardassian colony on Pentath III suffered from in 2372. [3] |
| Rudellian Brain Fever [4] |
Illness which Miles O'Brien suspected his wife of suffering from. [4] |
| Rop'ngor [5] |
A disease which affects Klingon children. It is somewhat similar to measels. [5] |
| Rigelian Kassaba Fever [6] |
A disease. Doctor McCoy once claimed that Spock suffered from Rigelian Kassaba Fever as a ruse to regain control of the Enterprise from the Kelvans. [6] |
| Rigelian Fever [7] |
Deadly disease similar to bubonic plague. Rigelian fever can be cured by Ryetalyn. [7] Samples of this disease were stolen from Cold Station 12 by a group of Augments in 2154. [8] |
| Rapid Aging [9] |
A disease accidentally produced in 2267 by scientists working on genetic experiments on Gamma Hydra IV. Rapid aging caused the people to suffer from the effects of old age despite being only in their 20s. [9] |
| Radiation Poisoning [10] |
Damage to the body produced by exposure to high levels of any type of damaging radiation. [10] |
