red streaks in Pamianthe

[wooden shoe]

My Pamianthe peruviana is not doing well. It lost it's leaves in autumn because someone let it fall down. This spring it happily grows leaves, but they do have red streaks and do not look healthy. Could it be the fungus Stagonospora curtisii? Or is it a virus?
Anyway, how can I treat it best?

Thanks a lot, Pamianthe is one of my favourites and I really want to be able to keep it going.
Rob

[wooden shoe]

My search on the internet led to this discussion in this magnificent forum http://www.srgc.net/forum/index.php?topic=4961.msg134675#msg134675 .
Very intersting to read. Could someone else diagnose Stagonospora in the Pamianthe? Or has more information on treatment?
Thank you!