Sen. Chuck Grassley (R-Iowa) has been hospitalized to treat an infection, his office said Tuesday in a brief statement.

Grassley, 90, is receiving antibiotic infusions at an area hospital to treat an infection, it said .

He is in good spirits and will return to work as soon as possible following doctors orders, the statement concluded.

Grassley is expected to make a full recovery, a spokesperson for his office told HuffPost.