I have only just got the sheep when the cocci problem arose, but the vet could not say why it was so high. She was just making an observation with this remark I think. The sheep looked well enough. We are on very high ground here, so its not damp. I do not have many sheep, so the land is not sick. I did question if my poultry had been the cause, but diseases cannot cross between hens and sheep, so she said.