J. Allen wrote:
No. If TWOK Khan had super blood he would have fared better when Kirk blasted Reliant's bridge. Or recovered noticeably during the Genesis countdown sequence. Just no.
Everyone else on that bridge was dead except
for Khan, so yes. Just yes.
The blood obviously does not make one immortal, but it does seem to make one more resilient to illness and damage. TWOK and STiD supports this.
I'm still not convinced about Khan in TWOK. In Space Seed, TOS McCoy would have had to have missed this during the course of his tests on Khan while in sickbay.