Unpicking the PCR

What are they really looking for and is the long swab really necessary?

We have been bombarded with snippets about the PCR test over the last two years. Amongst these, Kary Mullis, its inventor, said it cannot be used to diagnose illness from a virus. Then there was the fear that chips were being implanted on the blood brain barrier, that carbon nanotube worms were working their way in to the brain and that they were trying…