The cycle threshold value (Ct) is the minimum number of PCR cycles needed for the qRT-PCR test to successfully detect the virus. It indicates an estimate, not the exact amount, of the viral DNA ...

But, in this age of COVID-19, there's one magic number: the cycle threshold. The cycle threshold, called CT, is a metric used in PCR testing for COVID.

Mr. Cycle: An Automated PCR Prototype A 1985 prototype of a semi-automated thermal cycler, hot and cold water baths not included. Credit: Courtesy of The Smithsonian Institution" />A 1985 prototype of ...

PCR, or Polymerase Chain Reaction, is a revolutionary molecular biology technique that allows for the rapid amplification of specific DNA sequences. It is an essential tool in various fields, ...

[Figure 3] The actual process of blood direct PCR and an example of when they are detected and visually confirmed. (IMAGE) National Research Council of Science & Technology ...