University of Illinois System President Tim Killeen tested positive for the virus that causes COVID-19 on Saturday and, following guidance from the U.S. Centers for Disease Control and Prevention, is isolating at home in the President’s House at the University of Illinois Urbana-Champaign.

“My infection is an unfortunate reminder that the virus remains with us and that all of us must continue to take it seriously, remain vigilant and take reasonable precautions to prevent its spread,” Killeen said. “I am thankful to be fully vaccinated and doubly-boosted, and, thus far, my symptoms have been relatively mild.”

President Killeen is working at home while he rests and recuperates. His wife, Dr. Roberta Johnson Killeen, who is taking care of him, has so far tested negative for the virus.