It was not the development and creation of a CCR5
Post# of 148294
He has studied the effects of quieting RANTES, not silencing like Leronlimab has mastered, but he has seen what can happen when RANTES is heard no more.
That's why he wants Leronlimab; because nothing else on Earth can silence the hum of T cell paralysis and restore the normal ambiance of a garden in bloom.