Thanks Chelle, that's just the info I wanted, and helpful you have both growing. I have 4 own root Morden's Blush plants that are in 3 different parts of the garden, and have been there for 5 years. They are all only slightly larger than when they were planted. I think a lot of modern hybrids are unable to grow a strong enough root system to develop into a sizable plant.
Annette, now that you have seen the disease, you'll spot it if it shows up nearby. Hopefully if you find any diseased plants in neighbors yards, they will respond accordingly. There is a planting on Main Street here in town of double Knockouts that have RRV, and a strip mall here in town with an entire hedge of diseased plants- I'd be in fits if I lived near something like that!