[Name] Spectrox Toxaemia [Source] Doctor Who: The Caves of Androzani [Symptoms] 
A fatal condition caused by touching the raw form of Spectrox, a residue from the saliva of bats found on the planet Androzani Minor, that contained a chemical similar to nitrogen mustard. The lifespan of the sufferer is then reduced to between two and three days; symptoms include a rash and/or cramp, followed by spasms, paralysis and finally Thermal Death Point. The only known cure was the milk of the Queen Bats.