Moody's Investors Service upgraded and affirmed ratings on Marietta, Ga.-based WellStar Health System's certificates backed by Bank of America and Wells Fargo Bank.
Moody's upgraded the long-term joint support letter of credit-backed rating on variable rate revenue anticipation certificates subseries 2005-A to "Aa2" from "Aa3".
Additionally the long-term joint support LOC-backed "Aa1" rating was affirmed on variable rate revenue anticipation certificates series 2004 and series 2006.
The short term "VMIG 1" ratings on the certificates are unchanged.
The rating reviews resulted from an adjustment of the probability default from moderate to low, between WellStar and the LOC providers.