These tests are generally more sensitive than rapid antigen tests, and they’re less likely to return a false negative result. But as any molecular biologist can tell you, they require more focus and concentration to conduct. You also need some specialized equipment and costly reagents, so PCR tests can be quite expensive—between $75 and $300 for a rapid-turnaround test… More here.
Anything must be better than lateral flows. I was speaking to a customer at work yesterday and 6 people in her family tested positive in the New Year for Covid via PCR tests. They took lateral flows the same day just to check and only 1 of them was positive. Jo and I also tested negative on lateral flows the same day we both took positive PCR tests last year. We need something a bit better, or are we instead giving up on testing altogether?