Yes, coccidia is common and he is probably on albon. Coccicidia are microscopic parasites and easily treatable. I am glad he is doing better.
As for the comment about kids..I have four and none of them ever had the issues my yorkies have had luckily. I think yorkies as young pups especially just have a lot that can go wrong what with the low blood sugar, the retained baby teeth, coccidia, LP, livershunt, etc.
My kids were a piece of cake so after your yorkie you are more than ready for human babies!!
