There’s been some very promising results in the attempt to use CRISPR to excise HIV from the cells of those infected with the virus. All in cell-culture in the moment, so we’ve got a way to go yet, but even showing the ability to purge model cells of HIV is a huge step towards a permanent cure, that could help us similarly excise viruses responsible for cancer, associated with chronic fatigue, etc.
Also provides a foundation for targeted genetic changes to improve cancer prognosis more generally.