I have only 10 cows & 1 bull. Established herd for 15 years. Had 1 calf develop coccidiosis as a 4 month old-vetted & recovered. In the past 2 weeks I have had 3 calves born, 2 confirmed coccidiosis fecals, treated. Both died..latest calf born 3 days ago..today shows symptoms. in addition to the scours, there is severe muscle loss and uncoordination in hte hind legs...Vets are stumped...any help?