(CNN) - The H1N1 virus commonly known as 'swine flu' has hit Capitol Hill.
Rep. Greg Walden, a Republican from Oregon, tweeted Monday evening a doctor diagnosed him with the virus and is heading off to "seclusion for a while."
Andrew Whelan, Walden's press secretary, confirmed to CNN the congressman has fallen victim to swine flu and is following his doctor's orders to "get some rest and take it easy."
Walden appears to be the first member of Congress to come down with H1N1, though other representatives have said their children have contracted the virus.
CNN's Deirdre Walsh contributed to this report