File photo: Argentine President Cristina Fernandez. (Associated Press)
Argentine President Cristina Fernandez has checked into a Buenos Aires hospital for treatment of an "infectious fever," health officials said on Sunday.
The presidential medical unit released a statement saying that the 61-year-old president entered the Sanatorio Otamendi clinic after feeling ill on Sunday afternoon.
The statement gave no details about the ailment besides describing it as an "infectious fever."
In mid-October, doctors told the 61-year-old president to rest for 48 hours in order to recover from a sore throat.
In January, Ms Fernandez was treated for hip pain and sciatica, and in July she missed Independence Day celebrations to continue recovering from an acute throat infection.
Last year, she underwent head surgery to remove a blood clot. A 40-day period between December and January when Ms Fernandez went silent from public comments caused concern over her condition.