Promising Results from Cancer Study A new experimental vaccine (疫苗) has shown promising results in the fight against lung cancer.In a small Texas-based study, a vaccine developed by scientists at Baylor University Medical Centre inDallas, USA, cured lung cancer in some patients and slowed the progress of the disease in others. ' Researchers have reported encouraging findings from this small study. Forty-three patients suffer-ing from lung cancer were involved in these trials. Ten of these patients were in the early stages andthirty-three in the advanced stages of the disease. They were injected with the vaccine every two weeksfor three months, and were carefully monitored for three years. In three of the patients in the advancedstages of cancer, the disease disappeared and in the others, it did not spread for five to twenty-fourmonths. However, no great difference was seen in the patients in the early stages of the illness. This new vaccine uses the patient's own immune system It is made specifically for each patient and is in-jected into the arm or leg. It stimulates (刺激) the body's immune system, which then recognizes that thecancer cells are harmful, and attacks and destroys them The vaccine could be effective against other forms of cancer. It offers great hope for the treatmentof cancer in general, although further studies are needed before such treatment can be widely used. The vaccine cured all the participants in the trial.