Fuck, I forgot. I have to apologise for not replying sooner. Daphne did recover completely, and I must thank you for your generosity with the potion.
Yes, the virus has spread here. Who on earth took it back to Upper Slaughter? Just as Daphne recovered, Liam came down with it quite severely, and I had a very mild dose of guilt hence my tardiness in replying.
If you do come up with a cure, I would beg your indulgence again to get it for my son, as he doesn't seem to be getting better. If the Hogsmeade healers get a cure, I'll be sure to let you know.