Early studies showed that patients in the first days of infection have CT
values below 30,
and often below 20,
indicating a high level of virus;
as the body clears the coronavirus, CT values rise gradually. https://www.science.org/content/article/one-number-could-help-reveal-how-
infectious-covid-19-patient-should-test-results
也就是说高于30测出来基本没有任何意义，已经痊愈没了病毒。
