Cancer Vaccine
The main goal of Cancer vaccine is to help and
treat cancer or to help keep it away from coming back after
treatments. A cancer vaccine either treats
existing cancer or prevents the cancer from developing. Vaccines that
are able to treat existing cancer are therapeutic cancer vaccines and the
others are "autologous" vaccines which is being prepared from samples like blood taken
from the patient. They are specific to that patient only. Few researchers
claimed that cancerous cells arises routinely are destroyed by the immune
system mostly but tumors form when the immune system fails to destroy them.