Q72: Tenmyouji had seen what the effects of Radical-6 were before going to Rhizome-9. Why, when Quark showed signs of it, didn’t he realize that’s what it was until Luna had scanned him?
Due to the tragedy on 4/13/2029, the population on the earth decreased tremendously.
As a result ironically, the spread of Radical-6 stopped and the pandemic came to an end. Tenmyouji spends 45 long years after that living through the aftermath. So I assume he would never have imagined that Quark would be infected with Radical-6, which has been gone for so long.