That sign leaf curling/cupping is a Calcium problem and looking at your plants, the yellowish bumpy ones need the Calcium the dark green bending downward and purple ones are too close to the lights.
Mybe not related to the curling/cupping but if you run the lights on 24/7 they can never sleep. And that will make the plant tired Have you tryed to mybe have the lights on for 16h a day?
I disagree, every plant that I ever had that looked like that did fine as soon as I applied some form of calcium and or adjusted the pH. There was no virus at all and all said plants did just fine after the treatment and the leaves went paper flat from the calcium.
I think calling it a virus is a tad overboard, but thats just my opinion.