cymbidium mosaic virus testing?

[Exo]

I have a Brassidium hybrid that may have virus, since it has some leaf spotting and streaking on the leaves, particularly the oldest ones. I came to this conclusion after seeing some online pictures that look very much like what it has. However, I also know that Brassidium can develop leaf spotting in very bright light..and since I really like this orchid, I don't wanna toss it unless I know for certain. So, I was just wondering how does the process of testing work, and are there are any places that do it for a low cost?

Thanks.