For now I would keep an eye on those leaves. If it's not getting any worse then you can just leave it be (unless it does turn out to be virus!). You can try some Physan 20 if you notice it getting worse. I've never used it since it's not available in Europe, but it does seem to be something often recommended on OB.
__________________ Camille
Completely orchid obsessed and loving every minute of it....
For now I would keep an eye on those leaves. If it's not getting any worse then you can just leave it be (unless it does turn out to be virus!). You can try some Physan 20 if you notice it getting worse. I've never used it since it's not available in Europe, but it does seem to be something often recommended on OB.