Sometimes rose mosaic virus (RMV) can present the way these leaves appear, but more often it consists of bolder, nearly symmetrical, zigzag lines across the leaf, rather than the spotty pattern that looks like a "pointillism" painting as shown here. If it is RMV, there's nothing you can do, and nothing really to worry about. It doesn't naturally spread to other roses via insects (like Rose Rosette disease).
Instead of RMV, my suspicion is that you have small sap sucking insects on the underneath side of the leaves, chewing on the tender portion of the leaf tissue. This can lead to a skeletonized appearance. Culprits could be rose leafhoppers and rose slugs. The former look like tiny greenish white insects with wings but that tend to hop more than fly when disturbed. They often feed on the underneath side of leaves, but tend to make larger holes than shown in your image. Rose slugs look like tiny green inch worms that sometimes curl up into little circles at their youngest stage. Their color matches the underneath side of the leaf so well that you can easily miss them. Or, it could be another type of insect. If rose slugs are your culprit, you have quite an infestation of them, so you should be able to see them by turning the leaves over. If this is the case, there are various treatments, either organic (like spraying the undersides with horticultural soap solution in a spray bottle), or poisonous insecticides, of which there are many. Be sure to confirm the actual presence of rose slugs before spraying.
