Neospora occurs worldwide, and is a major cause of abortions in the United States. If you have Neospora on your dairy, Mark Anderson, veterinarian at the California Veterinary Diagnostic Laboratory at the University of California-Davis, suggests following these guidelines to help limit
its spread.

1. Dispose of all afterbirth and aborted fetuses, thereby keeping them away from dogs.

2. Control the dog population on your farm, especially puppies.

3. Strive to keep all feeding areas and feed supplies clean and sanitary.

4. Cull all cows that test sero-positive.

5. Buy only heifers that test sero-negative.

6. Test all calves and only raise sero-negative heifers.