CONCORD, Calif.--(BUSINESS WIRE)--Cerus Corporation (NASDAQ:CERS) announced today that Rhode Island Blood Center (RIBC) has signed a purchase agreement for the INTERCEPT Blood System for platelets and plasma. Rhode Island Blood Center is the primary supplier of blood products to hospitals in Rhode Island, and also services hospitals in nearby Massachusetts and Connecticut. RIBC distributes approximately 12,500 platelet and 42,000 plasma units annually.