A 12-year-old girl has been isolated at a Taipei hospital with SARS symptoms, say Taiwanese health officials.
If the child has Severe Acute Respiratory Syndrome, she would be the first new case since Taiwan was removed from the World Health Organization's (WHO) list of SARS-infected areas three weeks ago.
National Taiwan University Hospital in Taipei reported the girl to health authorities on Wednesday, officials said on Thursday.
The girl had returned from a visit to Shanghai on July 5 and developed a fever two days later, officials said.
"Because first tests show a weak positive reaction, there is a high suspicion that this could be a SARS case," said Su Ih-jen, the chief of Taiwan's Center for Disease Control.
More definitive results should be available later Thursday, Su added.
Seven people who had close contact with the girl have been quarantined, officials said.
Taiwan was taken off the WHO's list of SARS-affected areas on July 5.