The vaccine appears to be safe and effective against triple-negative breast cancer -- a type that can’t be treated with hormone therapy because it isn’t driven by any of the three hormones that typically fuel breast cancer.

A breast cancer vaccine could be closer to reality, according to Cleveland Clinic, as its researchers have announced some encouraging results. Researchers and doctors weigh in.

An experimental vaccine could offer fresh hope to women diagnosed with an aggressive and hard-to-treat form of breast cancer, new research suggests.