US Supreme Court Justice Ruth Bader Ginsburg, 86, has been admitted to hospital suffering chills and a fever, the Supreme Court said in a statement:

SCOTUS – Justice Ruth Bader Ginsburg was admitted to Johns Hopkins Hospital in Baltimore, Maryland, last night after experiencing chills and fever earlier in the day. She was initially evaluated at Sibley Memorial Hospital in Washington, D.C. before being transferred to Johns Hopkins Hospital for further evaluation and treatment of any possible infection.
With intravenous antibiotics and fluids, her symptoms have abated and she expects to be released from the hospital as early as Sunday morning. Further updates will be made when available. (link)