- Dec 10, 2005
PCR is the technique. There are different types and different ways to sequence with that underlying technique. More rapid PCR-based tests might only look for a smaller, unique part of the coronavirus genome in order to provide faster results.I was under the impression that PCR (polymerase chain reaction) WAS the genetic test. As far as I know, the "quick" half-hour tests are looking for antigens - basically, the same types of proteins that the mRNA vaccines stimulate your muscle cells to make. Presumably not the same ones as the vaccines create or at least not ALL the same ones.