• Xinwei Wu, Gang Cheng, Biao Di, Aihua Yin, Yunshao He, Ming Wang, Xinyu Zhou, Lijuan He, Kai Luo, and Lin Du.
• Guangzhou Centre for Disease Control and Prevention, Guangzhou 510080, China. tom.wu@tom.com
• Chinese Med J Peking. 2003 Jul 1; 116 (7): 988990988-90.

ObjectiveTo establish a fluorescent polymerase chain reaction (F-PCR) method for detecting the coronavirus related to severe acute respiratory syndrome (SARS) and to evaluate its value for clinical application.MethodsThe primers and the fluorescence-labeled probe were designed and synthesized according to the published sequence of the SARS-associated coronavirus genes. A F-PCR diagnosis kit for detecting the coronavirus was developed, and 115 clinical nasopharyngeal gargling liquid samples were tested.ResultsThe sequence of PCR amplified products completely matched the related sequence of the SARS-associated coronavirus genome. Forty-nine out of 67 samples from identified SARS patients and 8 of 18 samples from persons having close contact with SARS patients showed positive results. All 30 samples from healthy controls were negative.ConclusionThe F-PCR method established may be a rapid, accurate and efficient way for screening and for the early diagnosis of SARS patients.

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