For more than a century, MSD has been a global healthcare leader working to help the world be well. MSD is a tradename of Merck & Co., based in Kenilworth, New Jersey, USA. Through prescription medicines, vaccines, biologic therapies, and animal health products, MSD works with customers and operates in more than 140 countries to deliver innovative health solutions. MSD also demonstrates its commitment to increasing access to healthcare through far-reaching policies, programmes and partnerships.