The prayers of millions of people may be answered soon.
A vaccine is being tested at the Mayo Clinic that researchers say has removed cancer cells from a breast cancer patient. Dr. Saranya Chumsri, an oncologist at the clinic says that the vaccine is, "supposed to stimulate a patient's own immune response so that the immune cells like t-cells would go in and attack the cancer."
A Florida woman in the early stages of breast cancer is the first person to participate in the testing of the vaccine and doctors say her cancer cells are gone. Dr. Chumsri says other patients in the clinical trial are also showing positive results after getting the treatment.