OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has commented that the Credit Ratings (ratings) of Humana Inc. (Humana) (headquartered in Louisville, KY) (NYSE:HUM) and its insurance subsidiaries remain unchanged following the announcement that Humana has an agreement to acquire a 40 percent minority interest in the home healthcare provider Kindred at Home. The acquisition cost is estimated at approximately $800 million, plus any related expenses related to separation charges from Kindred at Home’s L