The young woman who helps me with my horses purchased a bred cow in Dec. It had a calf about three weeks ago. Three days later the cow got sick. Vet took samples and gave antibiotics. Tests came back -staphylococcus aureus. Vet said most dairy farmers would just put down cow as it is almost impossible to cure. Does any front porchers have any experience with this bacteria? Any help would be appreciated. This is her only cow. Right now it is acting fine.