资讯

Full Fact4 年
What’s a PCR test cycle threshold and why it matters
The World Health Organisation confirmed that the PCR test is flawed and all tests with a high cycle threshold (Ct) are invalid. Our verdict False. It reiterated guidance that tests with a high Ct may ...
Reuters4 年
Fact Check: The WHO did not say PCR tests are ‘invalid’; a Canadian article has ...
An article shared on social media has falsely claimed the World Health Organisation (WHO) has admitted numbers of COVID-19 cases are “meaningless” due to “invalid” PCR tests.
Tempo3 年
What 'CT Value' Means in Your PCR Test Report
Then, there is the term ‘CT value’ that comes after every PCR test, but what does it translate to? Makassar’s Primaya Hospital Pathology specialist Selvi Josten explains that the term stands for ...
The Hindu3 年
RT-PCR: Cycle threshold value does not hold clinical relevance
At present, the most often repeated number appears to be the cycle threshold value (Ct value) reported on an RT-PCR at the time of diagnosis. An RT-PCR test detects genetic material in a sample ...
The Daily Telegraph3 年
‘Shambolic’ Covid PCR testing rules meant one in three who isolated were never contagious
Up to a third of people who tested positive for coronavirus by Polymerase Chain Reaction (PCR) tests were not contagious ... There is no definitive cycle threshold level for positivity.
MedPage Today4 年
Op-Ed: Why PCR Cycle Threshold Is Useful in Coronavirus Testing
the state of Florida has required all laboratories doing COVID testing to report the cycle threshold numbers used in qualitative and quantitative tests. So how does a qualitative RT-PCR test work?
Healio4 年
Cycle threshold values in PCR testing lower in symptomatic children with COVID-19
Source: Adobe Stock The researchers performed a retrospective cross-sectional study to compare PCR cycle threshold values among 728 children who tested positive for SARS-CoV-2. The children were ...