Sen. Dianne Feinstein (D) has been hospitalized in San Francisco for shingles infection, according to a statement released to the San Francisco Chronicle on Thursday.

The newspaper stated that the California congressman was diagnosed with the virus, a non-life-threatening condition that causes a severe rash, in late February. She is anticipated to recover fully. Earlier this week, it was reported that Feinstein, who turns 90 in June and is the Senate’s oldest member, was absent from Washington, D.C., due to an unidentified “health issue.” Since her diagnosis, she has been in California, where she has missed a dozen votes and two committee sessions, according to her spokesman. “I plan to return to the Senate later this month,” Feinstein’s representative stated.