RE: RSS - testing10 Jun 2021 22:32
The RSS experts stress that the assessment of a test’s safety must go beyond just the safety of the device itself, to include the potentially harmful consequences of false negatives and false positives. PCR cannot tell you what a false positive is because it does not target the infectious and generates more false positives than anything else. All Deeks' statistics are worked out from pcr which is a technology not relevant to rapid LFTs. Sure a pcr can sequence a virus and tell you if you have had it by looking for antibodies and remnant virus. Cobas 6800 relies on this! with frozen samples(so easy for you PD, having a machine do all the work)
The RSS article says " the government would not allow a negative result from a more reliable PCR test to overrule the LFT result." this betrays their utter ignorance. PCR was useless at controlling spread and will not be able to measure a false positive. Deeks is a buffoon, pay attention to Mina and Kary Mullis who despite this article https://fullfact.org/online/pcr-test-mullis/ did stress PCR was for analysis, not detecting a highly infectious individual.
AS will never differentiate his affimers if he cannot win the argument that the infectious in a pandemic can only be isolated through a rigorous testing regime with a new technology where there is an outbreak. Deeks and his stats are unscientific and LFTs can only be measured against each other to see which get the r rate down. Any positives can be PCRed and from interpreting this it should be possible to put the LFT in a band of results from pcr analysis of the same sample and this can be used to inform the results of different LFTs and the R rate in the tested community using one particular test. This keeps the technologies seperate and used as purposed. It might turn out using this method of evaluation that AffiDX does control outbreaks in a community but the PCR analysis cannot explain why. Well I already have an answer if this was the case: PCRs destroy the molecular evidence of the infectious stage.
Bear in mind lockdown has to end and if outbreaks occur no rational methodology for control of covid has yet been put forward by the scientific community so there is no accepted control method with which to educate the public. The RSS article is waffle, if negative results do not rule out infection how on earth does he think outbreaks can be lived with.
Currently without another wave of covid, vaccines seem to be the current saviour but that is a gamble and rising infections if they come will I hope be proved controllable with AffiDX when on the market and as Larsh posts- data will be available.