Primary Credit Analysts: Stephen Infranco, New York, (1) 212-438-2025; stephen.infranco@spglobal.com Ken W Rodgers, New York, (1) 212-438-2087 NEW YORK – (Standard&Poor's CreditWire) Feb. 23, 2000—Standard&Poor's today lowered its underlying rating (SPUR) to triple-'B'-plus from single-'A'-minus on Washington Health Care Facilities Authority's $90.51 million health care revenue bonds and $33.40 million variable-rate demand bonds series 1997B dated Aug. 20, 1997, issued for Virginia Mason Medical Center (VMMC). Standard&Poor's also revised its rating to negative from stable. The downgrade reflects: -- Poor financial performance, with fiscal 1999 results expected to generate negative margins after onetime adjustments, in addition to the preceding years loss of $12.0 million; -- A limited balance sheet, with current liquidity at 61