• Reverse Transcription Polymerase Chain (RT – PCR) reaction is a laboratory technique.
  • RT – PCR make many copies of a specific genetic sequence for analysis. 
  • The test detects the presence of a virus if you have the virus at the time of the test
  • RT-PCR is used to detect certain changes in a gene or chromosome or for activation of certain genes, which helps to diagnose a disease, such as cancer, COVID etc.