Get Your Standard COVID PCR Test And Certificate Combined Package. PCR Stands For Polymerase Chain Reaction. This is an Accurate Government Certified COVID Diagnostic Test that Determines If You Are Infected by Analyzing A Swab Sample Of Fluid From Your Nasal Cavity To See If It Contains any Genetic Material From The COVID Virus. This PCR Test is a Simple And Fast At Home Self-Test With Very Accurate Results. With the Standard PCR Test And Certificate Package, You will receive a Video Tutorial To Help Guide You Through the PCR Test Procedure. After Completing Your Swab Sample, you then Post It To Your Closest Designated Royal Mail Priority Mailbox. You will then Receive Your Results And Certificate Within 24 hours After The Sample Has Arrived At The Testing Facility.