Actress Charlize Theron was reportedly admitted to a Los Angeles hospital with an unknown and serious virus.
The Oscar-winning actress spent four nights at the Cedars-Sinai Medical Center last week after contracting a painful stomach virus, reported the National Enquirer.
The 'Monster' star reportedly suffered severe abdominal pains, which she attributed to food poisoning.
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But when the sharp stomach pains failed to go away, Theron's boyfriend Stuart Townsend took the actress to Cedars-Sinai Medical Center to seek treatment.
Doctors ran a series of tests and diagnosed Theron with a serious virus thought to have been contracted during her travels overseas, according to the National Enquirer.