Baxter International Inc. is a Fortune 500 American health care company with headquarters in Deerfield, Illinois. The company primarily focuses on products to treat hemophilia, kidney disease, immune disorders and other chronic and acute medical conditions. Baxter's BioScience business produces recombinant and blood plasma proteins to treat hemophilia and other bleeding disorders; plasma-based therapies to treat immune deficiencies and other chronic and acute blood-related conditions; products for regenerative medicine, and vaccines.