Indirectly, yes. Our main focus in research into red lyrium, but with reports of the substance infecting darkspawn, we have broadened our research.

You have seen them up close before, so you must know to cover your nose and mouth and any open cuts. The Blight is most easily contracted by those means. Anything deeper than that, you will want to talk to the Grey Wardens. Darkspawn killing is their specialty.