Moody's Investors Service affirmed the "Aa2" long-term joint support letter of credit backed rating on Monongahela (Pa.) Valley Health System's series 2011A and series 2011B hospital revenue bonds.
Moody's review of the ratings is based on its downgrade of the health system's underlying rating assigned March 8. The bonds are supported by direct pay letters of credit provided by PNC Bank.
The rating agency's short-term VMIG 1 ratings assigned to the bonds were not changed.