Ct Wert 26. Although no studies have shown there is a correlation between threshold cycle value and the severity of the. Van Kampen JJA van de Vijver DAMC Fraaij PLA Haagmans BL Lamers MM Okba N et al.
All Answers 58 Ct value is specific to your sequence of interest SOI and correspond to the number of cycles to reach a define threshold. Werte in den 20ern bedeutet viel Virus Werte in den hohen 30er bedeuten wenig Virus Wie viele Viren jemand in Nase und Rachen hat beeinflusst wiederum wie ansteckend jemand ist. C t threshold cycle is the intersection between an amplification curve and a threshold line Figure 1BIt is a relative measure of the concentration of target in the PCR reaction.
Ct value is the value obtained during RT-PCR and is a final result indicating the amount of infection or viral load present in a sample.
Comparability of Ct values among different kits is a challenge as our labs are using a mixed basket of kits now with different Ct cut-offs and different gene targets. In order to calculate the Ct value it is necessary to draw a horizontal line threshold on the amplification plot. If the CT value is below 35 in the RT-PCR test a patient is a COVID-19 positive. The CT value is a marker of the viral load in a patient potentially suggesting the severity of the COVID-19 infection.
