Standard&Poor's Ratings Services assigned its 'A+' underlying rating to Maryland Health and Higher Educational Facilities Authority's $12.2 million revenue refunding variable-rate demand bonds Series 2008A, issued for Johns Hopkins Health System Obligated Group, Md.'s obligated group (JHH), which comprises the Johns Hopkins Hospital and Johns Hopkins Bayview Medical Center. In addition, Standard&Poor's affirmed its 'A+' underlying rating (SPUR) on various JHH obligations, the 'A' rating on JHH's series A lease revenue bonds; and the 'A-1' short-term rating on Maryland Health and Higher Educational Facilities Authority's $100 million series C pooled loan commercial paper (CP) program. The program is based on a bank liquidity facility from Sun Trust Bank for principal repayment and the JHH obligated group