It is definitely possible. If the parent plant was virused, then it is likely that any mericlones from it would be virused also. While some large commercial propagators test their plants regularly, I am sure that some do not-especially the ones doing the mass production for markets like the big box stores.I'm just wondering if a whole bunch of these got infected in the mericloning process.
Just as an interesting sideline, I recently watched an online auction for a historically significant, and apparently desirable, division of a Cattleya species plant. According to the description, all divisions of the cultivar are virused, including the one being sold. The plant foliage showed some minor lesions, but the flowers looked fine. I was shocked at the amount of $$ that this plant went for-almost $800 . It was beyond me that someone would spend that much for a virused plant, no matter how desireable.