Objectives To construct a model to investigate dynamic changes in and the correlation of CD58,CD59,and CD2 in BALB/c mice infected with Mycoplasma suis and to determine the effects of M.suis on immune regulatory molecules in red blood cells and the mechanism of the body's immune response. Methods Mice were infected with M.suis and 10 ml of mouse blood was collected.Blood was purified and diluted with saline to 2×103/μl,and then the morphology of M.suis was observed.Sixty BALB/c mice were randomly divided in...