So in theory, what disease can DRACO cure? Like Hep A, B, C? Flu? H1N1? Coronavirus?
There are literally hundreds of chronic diseases which have been associated with chronic low-level viral infection, including type 1 diabetes, multiple sclerosis, Alzheimer's, Parkinson's, lupus, numerous cancers, various heart diseases and heart valve diseases, atherosclerosis, stroke, infertility, etc.
A list of chronic diseases linked to viruses and other infectious pathogens can be found here.
None of these diseases are yet definitely proven to be caused by the infectious pathogens they are associated with, but there is a good possibility that they might, so DRACO would be an interesting experimental treatment for any of these diseases.
Then you have the chronic diseases which are known and proven to be caused by viruses, such as hepatitis B and C infection of the liver, chronic myocarditis (caused by coxsackievirus B and others), nasopharyngeal carcinoma (a cancer caused by Epstein-Barr virus), cervical cancer (caused by human papillomavirus), Kaposi's sarcoma (a cancer caused by the HHV-8 virus), etc.
DRACO could potentially treat all these diseases. Moreover, DRACO might be effective as a preventative treatment, to prevent chronic disease from occurring in the first place, by eliminating the dozens of viruses most adult human beings already carry in their body, before these viruses can trigger a chronic disease or cancer.
Usually viruses will not immediately trigger a chronic disease or cancer; after you catch the virus, it may take years or decades before the disease manifests. So if you can clear the viruses in your body before they trigger disease, this would be the best approach.
Of course, if you clear your viruses, you will go on to catch new ones, as there are hundreds of human viruses in general circulation. So DRACO therapy might be repeated once every say 5 years, to keep the body clean from viruses.
The difficulty might be getting DRACO to work for latent viruses (viruses which have entered a cell and then go into a pre-programed dormant state of very little activity). DRACO targets the dsRNA that viruses make during replication; but during latency viruses do not replicate, and so I imagine will produce very little, if any, dsRNA.
Latency is one way viruses hide from the immune system, and possibly latency might allow viruses to hide from DRACO too (though I don't know enough about DRACO to say for sure).
In fact researchers have been looking at ways of trying to reawaken viruses from latency, because it they can do this, and if the viruses wake up and start replicating again, then either the immune system and/or antivirals can target and eliminate these replicating viruses.
So DRACO in combination with a drug that can wake viruses from latency might be sufficient to fully eliminate viruses entirely from the body.