2) Targaryens are supposed to be impervious to disease: "There was fire in the blood of the dragon, it was reasoned, a purifying fire that burned out all such plagues." Tellingly, the Shivers is ...

R. Martin's in-universe text, Fire & Blood. The source material is presented from the perspective of Archmaester Gyldayn of the Citadel. The show lifts curtains on Westeros two years before the ...