Seriously people. Draco is a STAR CONSTELLATION. You don't need to be that afraid of the name just due to Harry Potter. It means "dragon", and not all dragons are bad.
Anyway, I'm very impressed with the development. They should be careful about any side effects though, and I do think that killing off viruses may for example lower our resistance to them and/or create new, more resistant viruses. We don't want to help the damned things evolve.
We need to evolve with them since their evolution, as they are endemic to the Earth at present and their evolution is basically inevitable. That does (very, very sadly) probably mean incurring some casualties on purpose as opposed to always medicating. I'm no doctor so correct me if I'm wrong, but letting medicine cure everything for us in the short term could backfire in the long term. I'm just saying.
Still, it sounds very close to a panacea, which is both awesome and terrifying at the same time.