Continuing with my theme this week, which is apparently the attempted redemption of virus's reputations, I've found another example of viruses being put to good use. Apparently new research indicates that Cytomegalovirus may help doctors target cancer cells in the brain. The virus is present in upwards of 90% of cancer patients with the deadliest form of brain cancer. Scientists are hoping that by developing a vaccine for CMV they might be able to boost the body's immune response to the brain tumor cells and help kill the tumors. So indirectly the virus may actually help save lives!