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Re:India's massive COVID surge puzzles scientists by 3dee on Thursday April 22, 2021 @05:11AM (#26900522)
As far as I know it does not detect DNA but RNA. RNA degrades slowly and it is estimated it can take 1 to 3 months to be completely gone.
Re:India's massive COVID surge puzzles scientists by nyokodo on Thursday April 22, 2021 @07:09PM (#26909234)
You are correct since they use RT-PCR specifically for SARS-CoV-2. However, the number of cycles used in the process is key, <= 24 cycles produces very few false positives for active infection. The OPs explanation for the increased rate doesn’t match this fact.