Never heard of it myself, but likely that six month old pup we got from a working farm in Wales has it... Seems it is some sort of parasite. She's been having sloppy poos for a week and the vet has put her on special gastro sensitive food, and given her some deworming stuff. She was unwell at first but seems fine now. Have got to give her five days the its poo sample time.
Anyone come across this?