前两天刚看一个JAMA paper说18%感染新冠的人是核酸长期阳性的。检测阴性以后会再次阳性，而且有可能有传染性，国内这些案例也许就是这一小部分感染者。 https://www.healio.com/news/primary-care/20201112/some-patients-test-positive-for-sarscov2-after-recovery-few-may-be-infectious# Some patients test positive for SARS-CoV-2 after recovery, few may be infectious Approximately 18% of patients who recovered from COVID-19 and tested negative for the virus later tested positive, and a small number may still have been infectious, according to a study published in JAMA Internal Medicine. “This study highlights that many patients who recovered from COVID-19 may be still positive (albeit at lower levels) for SARS-CoV-2 RNA, but only a minority of the patients may carry a replicating SARS-CoV-2 in the respiratory tract,” Flora Marzia Liotti, PhD, of the department of basic biotechnological sciences at the Catholic University of the Sacred Heart in Italy, and colleagues wrote. 所以说，接触新冠俞后病人还是要小心？ 妈的不让人活了，简直。
入境后直到第14天测试结果是阴性，又隔离14天后测出来阳性。到底是否真的是境外输入呢？有没有可能是入境后被感染的呢？
只要是国外回来的，阳性必须是输入。
这妥妥的国内传染的啊
不顾死活，一刀切的隔离更有效。
这次和山东那次都是回省二次隔离期间查出来的。
真惨，回国先做一个月牢。
https://www.healio.com/news/primary-care/20201112/some-patients-test-positive-for-sarscov2-after-recovery-few-may-be-infectious#
Some patients test positive for SARS-CoV-2 after recovery, few may be infectious
Approximately 18% of patients who recovered from COVID-19 and tested negative for the virus later tested positive, and a small number may still have been infectious, according to a study published in JAMA Internal Medicine. “This study highlights that many patients who recovered from COVID-19 may be still positive (albeit at lower levels) for SARS-CoV-2 RNA, but only a minority of the patients may carry a replicating SARS-CoV-2 in the respiratory tract,” Flora Marzia Liotti, PhD, of the department of basic biotechnological sciences at the Catholic University of the Sacred Heart in Italy, and colleagues wrote.
所以说，接触新冠俞后病人还是要小心？ 妈的不让人活了，简直。
摄像头，人脸识别，手机定位这么厉害 但是就是说不清楚武汉病毒怎么来的
连17年前，sars的来龙去脉，当时就摸的一清二楚
这1%的比例怎么在国外回中国的人比例上变的这么高
当时武汉的摄像头统一坏了，就酱