My first (virused) orchid?

[JanS]

I've been watching this one for a while and something is wrong. I've had it for a few years and got it (I think) at my wife's (she's a nurse) hospital where a grower sold orchids to the staff once a year in a room in the hospital as a "perk" to the employees for cheap. I bought a numer more over two years that are fine.

In the past 6 months here's what happened to this one: first note the yellow patterns on the leaves which (to me) seem to correspond to orchid virus patterns shown on the net. Do you agree? Anyone has had this happen? Second, the newest growth is stunted. I know thsi can happen for many reasons - like loss of a good root system, sun/heat damage ( both been there done that) but this plant has not (to my knowledge) been subject to either.

Do I have a seriously virused plant? - Already isolated it but, as you all understand, don't want to kill it without being sure...