HEALTH

Steris to Buy Amsco in Stock Deal: Steris Corp. will acquire medical equipment maker Amsco International Inc. in a stock swap worth about $660 million, the companies said. The deal, which is subject to shareholder approval, would help both companies cut costs by capitalizing on synergies in sales, manufacturing and product development. The news pushed Steris’ stock down $9.75 per share to $32.50 on the Nasdaq, and Amsco fell $2.63 to $15.13 on the New York Stock Exchange. Steris, which is based in Mentor, Ohio, makes sterile and infection-prevention products. Pittsburgh-based Amsco makes sterilizing and surgical equipment for hospitals.