Who is seeing this paper - is Harry on the list for approval. I dont have a whole lot of problems with it except it has quite a few unanswered questions in the discussion like the level of antidody needed to impact and the comment that the low number might be due to the antibody binding - if this is the case isn't that what we want and have we attempted to measure that ? 
It is good taht we have shown that cattle respond in like fashion to sheep and this is good to demonstrate but I'm still a bit worried about the unanswered questions. Its a bit telling that we quote Andre with 7% reduction 10 years ago and we can emulate that - I thought that qwe had discredited that paper? 

Mark 