| china | | chinese yam necrotic mosaic virus | species | 2 | 0 |
| japan | aomori prefecture | chinese yam necrotic mosaic virus | species | 2 | 0 |
| south korea | | chinese yam necrotic mosaic virus | species | 3 | 0 |
| south korea | north gyeongsang province | chinese yam necrotic mosaic virus | species | 1 | 0 |
| taiwan | | chinese yam necrotic mosaic virus | species | 1 | 0 |