"We believe that this systemic stress emanates from five interrelated factors.
"We also believe that these factors influence the creditworthiness, in varying degrees, of all the members of the eurozone."
The rating agency said credit conditions had tightened partly due to new Basle capital rules, risk premiums were rising and there were continued disagreements with European policymakers on how to tackle problems.
State and household indebtedness was high and risk of recession was higher for 2012 with economies of Spain, Portugal and Greece expected to contract and a 40 percent chance and the entire zone will show negative growth.
Many European nations engaged in 'stimulus' to boost growth, after taking on bank debt and other liabilities to the public balance sheet in the belief that more state spending and d