RE: Test Design5 Jun 2020 19:12
B2HS2L - This is the approach another manufacturer has taken to detect swabbing issues. Would have thought something similar from Primer would be sensible, if looking to deploy the test widely not using experienced clinicians.
"The PCR test looks for 3 distinct signals in each sample (i) a positive or negative COVID19 signal based off E and N genes, (ii) an internal control signal to tell you that the PCR reaction has worked and (iii) an human “RNaseP” signal that tells you there is human DNA in the sample. Ideally, you get all 3 amplifying in a positive case. If you get no COVID signal and also get no RNaseP signal, good chance it’s not the best sample, or no sample at all."