Cancer-Killing Viruses Enter in Stealth Mode, Penetrate Immune Barrier

Viruses that, when administered to patients, preferentially attack and kill cancer cells, leaving normal tissues unscathed. It might sound like science fiction, but oncolytic viruses are, in fact, already a (small) part of oncologists’ toolkit. Five years ago, the U.S. FDA approved the first and only oncolytic virus therapy called talimogene laherparepvec (T-VEC, or…