The whole article starts below.
So according to this information,
you can just disappear from existence!

MAN'S BLOOD AND SEMEN FOUND TO CONTAIN ONLY DONOR'S DNA AFTER BONE MARROW TRANSPLANT

by Hannah Osborne on 12/10/19 AT 6:50 AM EST

man's blood and semen has been found to contain only the DNA of a donor following a bone marrow transplant that took place years earlier. Tests showed that only the hair on his chest and head had not been altered by the donor DNA—a discovery that could have big implications for forensic science.

"I thought that it was pretty incredible that I can disappear and someone else can appear," Long told the New York Times.

Long, who worked at the Washoe County Sheriff's Office, was suffering from acute myeloid leukemia and myelodysplastic syndromes and had been scheduled to have a bone marrow transplant. One of his colleagues, Renee Romero, suggested he take DNA samples ahead of the operation to see what changes would take place.

"[I said] we need to swab the heck out of you before you have this procedure to see how this DNA takes over your body," she told the newspaper.

Just three months after the operation, tests showed how the DNA in his blood had been replaced with his donors. And the changes continued over time. Samples taken from his tongue, cheek and lip all contained donor DNA. Four years after the transplant, the team found his semen only contained DNA from his donor—a man from Germany. "We were kind of shocked that Chris was no longer present at all," Darby Stienmetz, from the Washoe County Sheriff's Office, told the Times.

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