The University of Pennsylvania began experimenting with replacing patients' own cells with new cells that can fight cancer in their system. Doctors first remove the patient's own T-cells (essential immune system cells) and inject those cells with new genes that are strong enough to fight cancer. The T-cells are then transferred back into the patient's system and replicate to produce 10,000 new stronger cells. These cells then fight the cancer cells and kill them, allowing the patient's immune system to heal itself much like it does with a common cold or flu. By reinforcing the immune system instead of using chemotherapy or radiation to kill cancer cells, the body is able to rid itself of cancer while progressively becoming stronger. This seeminingly miraculous new treatment is still in the early stages and only available to patients in experimental studies, but the results are astounding and doctors are working quickly to advance the treatments and make them readily available. The treatment process itself is relatively easy for doctors across the country to replicate and implement in their own patients, which will help to advance the procedure and provide a promising cure for many people. Nick Wilkins, a 14-year old who had leukemia from the age of 4, underwent this new procedure and is now cancer free for the first time in his life. Both children and adults have received this treatment, with overwhelming positive outcomes for all patients.