％0期刊文章％a chu，C.M。％a leung，W。S.％a Cheng，V。C. C.％A Chan，K。H.％lin，A。W. N.％A Chan，V。L. v. l.％A Lam，J。Y. M.％A Chan，K。S. S.％t严重急性呼吸综合症的RT-PCR阳性持续时间2005％r 10.1183/09031936.04.00057804％J欧洲呼吸杂志％p 12-14％p 12-14％v 25％v 25％x严重急性呼吸综合症（SARS）高度高度死亡率高的传染性呼吸道感染。感染的持续时间尚不清楚。在45例病毒学确认的SARS患者中，随后遵循与SARS相关冠状病毒（SARS-COV）的RT-PCR阳性。SARS-COV的串行RT-PCR在鼻咽抽吸物，粪便和尿液中进行了45例生存直至出院的SARS患者。所有患者的表现至少有一个对SARS-COV呈阳性的部位。所有患者都研究了RT-PCR转换的时间。有15名男性（33.3％）和30名女性（66.7％），平均±SD年龄为40.7±14.7岁。RT-PCR转换的中值（范围）为30天（2-81）。 On discharge from the hospital, 18 (40%) remained RT-PCR positive in at least one site. For patients with positive RT-PCR on discharge, the median (range) time to RT-PCR conversion after discharge was 13 days (2–60). A significant proportion of severe acute respiratory syndrome patients remained RT-PCR positive for severe acute respiratory syndrome-associated coronavirus for a substantial duration after discharge. The clinical significance is unknown and this finding merits further study. It is prudent to advise patients to adhere to strict personal hygiene on discharge until RT-PCR becomes negative. %U //www.qdcxjkg.com/content/erj/25/1/12.full.pdf