A vermin-infested Illinois State Capitol that was shut down by health authorities earlier this week was to reopen by 8.00 a.m Monday morning.

Workers at the State Capitol in Springfield Illinois have spent the past few days cleaning after State Health inspectors - acting on a customer's tip - closed the the Senate upon finding an infestation of rodents, including droppings in Bill preparation areas.

But the State isn't taking anything for granted, said Senator Matt Murphy, a Republican from suburban Chicago.

Workers have taken immediate measures to prevent the rodents discovered in the building from ever returning again.

Federal prosecutors are also drawing up charges following their own oversight of the matter.

The Senate passed its first post-inspection test today, when US President Barak Obama pledged full co-operation with health officials, saying in a statement "Today ends a painful episode for Illinois. For months, the state has been crippled by a crisis of rodent infestation. Now that cloud has lifted."

 Former State Governor Rod Blagojevich said today that the Senate worked hard to overcome the infestation. Yesterday he went to the Senate and delivered a 47 minute speech commending that work.

More than 30 legislators rose one by one on the Senate floor to denounce the infestation, saying it was "cynical," "crass," and "hypocritical."

Obama, fresh from his presidential election victory, issued a report concluding that no one in his inner circle had done anything to cause the infestation.