it depends if your body is strong or healthy it does but does not kill the diseases
Your immune system or your live, but you have to have healthy liver to filter out all your diseases.
your white blood cells. they fight off germs, diseases, and viruses.
It depends which disease it is because there are many different diseases in the Circulatory System.
If your circulatory system is not working, you do not need to worry about diseases because you will be dead.
Malaria
lukemia
The cure of respiratory and circulatory system's disorders or diseases is keeping off all forms of drugs.
Possibly you mean the white blood cells. They are the cells in the blood that combat viruses.
Circulatory system diseases, cancer.
Atherosclerosis and Hypertension.
M.S for one
Heart Attack '>'