Here's the info on Virus.
Many virus diseases infect Orchids but diagnosis can be difficult; virus symptoms often resembles less serious problems.
Symptoms:
Black, red or yellow spots or steaks appear on leaves.
flowers may have white or brown streaks or mosaic patterns.
Treatment:
Have
plant tested to confirm diagnosis.
plant viruses are incurable; destroy infected
plants.
plants may carry visruses without showing symptoms, so always sterilize tools before use on each
plant.
Check also "leaf spot" fungus such as Cercospora or Colletotrichum.
Symptoms:
Leaves have sunken, purplish brown or black spots. Spots start as yellow areas on leaf undersides, becoming more visible on both sides of leaf as they darken.
Treatment:
Take
plant outdoors and spray with a fungicide containing benomyl. Remove badly damaged leaves. Leaves with a few spots may be left on
plant. It is a rare orchid that doesn't have a spot or two.
From "All About
growing Orchids" by Ortho
For more info on Orchids, please visit the
American Orchid Society's website at
http://orchidweb.org/
or is there something I can use to get rid of the virus?