Sen. Rand Paul (R-KY) announced on Sunday that he has tested positive for coronavirus, which originated in China.

“Senator Rand Paul has tested positive for COVID-19,” Paul’s staff wrote on Twitter. “He is feeling fine and is in quarantine. He is asymptomatic and was tested out of an abundance of caution due to his extensive travel and events. He was not aware of any direct contact with any infected person.”

“He expects to be back in the Senate after his quarantine period ends and will continue to work for the people of Kentucky at this difficult time,” Paul continued. “Ten days ago, our D.C. office began operating remotely, hence virtually no staff has had contact with Senator Rand Paul.”

With the announcement, Paul becomes the first member of the U.S. Senate to test positive for the virus.

Last week, two members of the House of Representatives announced that they had contracted the virus.

Rep. Mario Diaz-Balart (R-FL) announced his diagnosis on Wednesday, writing: “I want everyone to know that I am feeling much better. However, it is important that everyone take this extremely seriously and follow CDC guidelines in order to avoid getting sick and mitigate the spread of this virus. We must continue to work together to emerge stronger as a country during these trying times.”

A statement from his office said, “In an abundance of caution, after votes on Friday, March 13th, Congressman Mario Diaz-Balart decided to self-quarantine in Washington, D.C, and not return to South Florida because of his wife Tia’s pre-existing conditions that put her at exceptionally high risk. On Saturday evening, Congressman Diaz-Balart developed symptoms, including a fever and a headache. Just a short while ago, he was notified that he has tested positive for COVID-19. While in quarantine Diaz-Balart has been working from his apartment in Washington, DC.”

Rep. Ben McAdams (D-UT) made his announcement a couple of hours after Diaz-Balart, writing, “On Saturday evening, after returning from Washington, D.C., I developed mild cold-like symptoms. In consultation with my doctor on Sunday, I immediately isolated myself in my home. I have been conducting all meetings by telephone. My symptoms got worse and I developed a fever, dry cough and labored breathing and I remained self-quarantined.”

“On Tuesday, my doctor instructed my to get tested for COVID-19 and following his referral, I went to the local testing clinic for the test,” McAdams continued. “Today I learned that I tested positive. I am still working for Utahns and pursuing efforts to get Utahns the resources they need as I continue doing my job from home until I know it is safe to end my self-quarantine. I’m doing my part as all Americans are doing to contain the spread of the virus and mitigate the coronavirus outbreak.”

McAdams concluded, “I urge Utahns to take this seriously and follow the health recommendations we’re getting from the CDC and other health experts so that we can recover from this public health threat.”