You asked
What percentage of Positive COVID-19 PCR tests to date have a Ct value of 30 or more and what percentage have a Ct value of 25 or more.
We said
Thank you for your request.
Analysis on Ct Values of PCR tests taken as part of the COVID-19 Infection Survey has been published by our academic partner at the University of Oxford. You can find this paper via the following link: Here.