Is mad cow disease in the blood of cows?

No, mad cow disease is not in the blood of cows. It is a neurological disorder that affects cattle and is caused by an infectious agent called a prion. Prions are abnormal proteins that can cause normal proteins in the brain to misfold, leading to the development of amyloid plaques and neuronal death. Mad cow disease is spread through contact with infected animals or their bodily fluids, such as saliva, feces, and urine. It is not spread through the consumption of meat or milk from infected animals.