Possible virus on C. intermedia?

[jkofferdahl]

While you may want to isolate your plant, I think it's far more likely that your damage is either insect- or fungal-related. Inspect the plant very carefully for signs of insects, some of which can be small enough to be very difficult to spot. If you isolate the plant like it's virused but treat it for other issues you'll have a diagnosis soon enough. I personally think that people fret about viruses a lot more than they actually encounter them.