If we have the virus dna, why can't we just have a pcr or similar kit to home test a swab? Someone can make their own pcr for $25 and synthesize significant segments of cov2 for a couple hundred dollars. I don't understand why cov2 testing is so difficult.
What I meant is that I agree that one can build a simple
thermal cycler (I doubt it can be done for $25 but does not matter). I know how PCR works, what I do not understand is the claim of synthesizing reagents at home, especially template and primers.
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If we have the virus dna, why can't we just have a pcr or similar kit to home test a swab? Someone can make their own pcr for $25 and synthesize significant segments of cov2 for a couple hundred dollars. I don't understand why cov2 testing is so difficult.
Ok
Please tell us more
then prepare a sample from a swab and see if the cov2 segments bind with dna from the swab
What I meant is that I agree that one can build a simple thermal cycler (I doubt it can be done for $25 but does not matter). I know how PCR works, what I do not understand is the claim of synthesizing reagents at home, especially template and primers.
yes synthesizing cannot be done at home, but companies can do custom synthsizing for relatively cheap, a couple hundred dollars for a short segment