Featuring: Connie Cepko Bullard Professor of Genetics and Neuroscience, Harvard Medical School Professor of Ophthalmology, Massachusetts Eye and Ear Infirmary Howard Hughes Medical Institute Investigator David Liu Thomas Dudley Cabot Professor of the Natural Sciences, Harvard University; Howard Hughes Medical Institute Investigator Dr. Cepko discusses the goals of gene therapy, the types of viruses that have vectorized and been used, and why they are being used. Dr. Liu reviews current human gene editing methods and developments. Both highlight examples from their own research.