Former US President Bill Clinton was admitted to MedStar Georgetown University Hospital in Washington, DC on Monday after developing a fever.

The 78-year-old was admitted “this afternoon for testing and observation,” Angel Urena, Clinton’s deputy chief of staff, said in a statement.

“He remains in good spirits and deeply appreciates the excellent care he is receiving.”

Clinton, a Democrat who served two terms as president from January 1993 to January 2001, addressed the Democratic National Convention in Chicago this summer and campaigned ahead of the November election for Democratic Vice President Kamala Harris’ unsuccessful bid for the White House.

In the years since Clinton left the White House, he has faced some health scares.

History of health problems

In 2004, he underwent quadruple bypass surgery after prolonged chest pains and shortness of breath. In 2005, Clinton returned to the hospital for surgery on a partially collapsed lung, and in 2010, he had a pair of coronary artery stents implanted.

Clinton responded by adopting a mostly vegan diet that saw him lose weight and report improved health.

The former president is 2021 hospitalized for six days in California while being treated for an infection unrelated to COVID-19, while the pandemic was still near its peak.

An aide to the former president said at the time that Clinton had a urological infection that spread to his bloodstream, but he was recovering and never went into septic shock, a potentially life-threatening condition. The aide said Clinton was in the hospital’s intensive care unit at the time, but was not in intensive care.