说不知道CDC怎么诊断的看这里

a
angelina81
楼主 (北美华人网)
c
cheeryinmay
谢谢分享!不过看起来没有要求测两次才下最后结论?
a
angelina81
When all controls exhibit the expected performance, a specimen is considered negative if all 2019-nCoV markers (N1, N2, N3) cycle threshold growth curves DO NOT cross the threshold AND the RNase P growth curve DOES cross the threshold line. 定义阴性的标准还是很严格的
b
bananarama
Respiratory specimens including: nasopharyngeal or oropharyngeal aspirates or washes, nasopharyngeal or oropharyngeal swabs, broncheoalveolar lavage, tracheal aspirates, and sputum. 样品采集这段说了鼻咽,口咽,支气管肺泡取的都行。问题是,早期的感染者,鼻咽和口咽里这种上呼吸道取的样准吗? 感觉还是肺泡更准确。
L
Lillymama
那么美国撤侨的第十三例假阴性如何说呢?到底是第一次取样没有病毒呢,还是RT-PCR本身的问题?
s
swing
美国人做事还是比较严谨的
t
trymeagain
👍
https://www.cdc.gov/coronavirus/2019-ncov/lab/rt-pcr-detection-instructions.html CDC 网上一直都有,不断更新中 angelina81 发表于 2/10/2020 9:04:00 PM