100%

Not only am I currently cancer-free, I am now 100 percent Kristen blood, not a trace of my own left. The results of my bone marrow biopsy from Day +32 came in: My immune system has been completely replaced with one identical to my sister's. This is excellent news – and not just because I can now get away with a crime scot-free. The most excellent part is that my new bone marrow is functioning very well on its own. My blood cell levels are in the normal range for the first time in years. There hasn't been any need for transfusions because all systems are functioning well, proving that my sister's donor cells gave me a very strong graft.

She and my mom came to see us in NYC yesterday. It was the first time I had seen her since transplant. Standing next to her I told her that I could feel the vibrations between us, like magnets. She laughed and asked me if I was crazy and I said, yes. But I really could feel it: good vibrations flowing through my veins.