I also thought ocean. Endless blue or Flats, though I doubt the cure would be something that isn't currently available to us.
Will try and keep thinking. I imagine whatever it is it isn't specific to one character, as with last time. I have two infected characters so I will probably be trying all kinds of stuff out, especially since one of them is a wee baby and being sick could be very bad for him. I will vigilantly report all findings. :p