Seven days following a single intravenous injection of a sentinel dose of LPS (20 ng/gm body weight which is 500 ng/mouse), none of the platelets were positive for leukocyte antigen. On the contrary, compared to leukocytes obtained from animals treated with vehicle or a week before LPS injection in the same mouse, granulocytes and monocytes were significantly positive for platelet antigen seven days after the single LPS injection (Figure 4) . Apoptotic bodies also stained positive for platelet antigen (Figure 4 ).