well spider mites freak me out more than viruses. I am pretty sure based on the odds that at least one plant in my collection has a virus.
SP at least you already know which one it is in yours
The reason spider mites freak me out apart from them doing a lot of damage is that they also spread a virus from one plant to another! Nobody is disinfecting their teeth as they nibble on an infected one and then wander over to its neighbour. I don't even think it is that likely that sharing water is too much of a concern unless one has just freshly broken a root for example to expose fresh plant juices to mix with the water and then drip on another plant but still not worth risking of course. The most obvious way to transfer it is using a tool to cut one plant and then use the same tool without sterilizing it on another. It's fresh plant juices that will always be the main concern with virusses. It's for this reason I try not to work on too many plants at the same time. I like to spread repotting over different days, let any tools dry well in between. I believe just like I have learnt that the corona virus can survive on surfaces but not that long that it must be the same with plant viruses, I assume that once they dry out they can't suvive.
One option would be to stick the orchid in the oven for an hour but I doubt the orchid would survive so yeah can't kill the one without the other so I opt for killing neither.