Louise Houson has joined MSD as Managing Director for the UK & Ireland.

Louise previously headed MSD's Human Health business in Ireland, where she spent the past year overseeing a period of significant growth. She brings over 18 years' experience at MSD, having excelled in a series of roles in the UK business, including most recently leadership of the Specialty Care Business Unit.

The new appointment sees Louise succeed Mike Nally, who will become the president of MSD's global vaccines business. Mike had served as the UK's managing director since 1 January 2014 - part of an overall 14-year tenure with the global healthcare company.