NEW YORK--(BUSINESS WIRE)--Fitch Ratings has affirmed the ratings of Ventas, Inc. (NYSE: VTR) and its subsidiaries, including the company's Issuer Default Rating (IDR), at 'BBB+'. The Rating Outlook is Stable. A full list of rating actions follows at the end of this release. KEY RATING DRIVERS The affirmation, 'BBB+' rating and Stable Outlook reflect Ventas' diverse portfolio of healthcare properties, demonstrated and consistent access to multiple sources of capital, adequate liquidity and a de