Rep. Greg Walden likely has the H1N1 virus.

Walden missed votes Tuesday night and his spokesman says he likely will be out of action for the next several days.

The spokesman, Andrew Whelan, says Walden thought he had a cold but felt worse as the day went on Tuesday. The Oregon Republican went to his doctor, who diagnosed him with a likely case of H1N1, also known as swine flu.

In a Tweet, Walden told his followers: "Just diagnosed with likely H1N1. Ugh. Off to seclusion for a while."

Walden is at home in the Washington area following doctor's orders.