CT value, or cycle threshold value, is a critical parameter in real-time PCR tests that indicates the number of cycles needed to amplify viral RNA to a detectable level. A lower CT value suggests a higher viral load, while a higher CT value indicates a lower viral load, providing insight into the severity or stage of infection.

CT Value

CT value

cycle threshold value

real-time PCR tests

viral RNA

detectable level

lower CT value

higher viral load

higher CT value

lower viral load

Severity of infection

stage of infection

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