Mike, it is impossible for any of us to tell you for sure if you have a virus in a plant from just a picture. There are virus test kits available if you want to go that route. There are about 25 different viruses that effect orchids and the symptoms may appear different in different genera. Viruses are primarily spread by unsterile pruning tools but can also be spread by insects so be careful. Just looking at that leaf makes me think of nutrient deficiencies. Try adding magnesium to your misting routine.
Jim
