(NBC) -- Fascinating health news out of the Mayo Clinic in Minnesota.
Stacy Erholtz put her hopes in one last treatment - a Mayo Clinical trial - after battling multiple myeloma, an incurable blood cancer for a decade.
Today, came what was impossible - she learns she's in remission.
Based on his life's work, her doctor did think Stacey could beat cancer with a high dose of the measles virus.
The measles essentially hone in on cancerous tumors and make them explode. The concept has proven successful in mice, but Stacey became the first person to receive a massive dose - enough to vaccinate ten million people.
Two myeloma patients were chosen because they are immune-compromised, and can't fight off the measles before it has time to attack cancer.
Of the two subjects in the study, Stacy was the only to reach full remission, still a medical milestone.
Dr. Stephen Russell believes his team can one day transform this research into a single shot cure.
The Mayo Clinic is moving immediately into a phase two clinical trial involving more patients with the hopes for FDA approval in four years.