Polymerase Chain Reaction (PCR) Sources:https://my.clevelandclinic.org/health/diagnostics/21462-covid-19-and-pcr-testinghttps://www.genome.gov/about-genomics/fact-sheets/Polymerase-Chain-Reaction-Fact-Sheethttps://www.yourgenome.org/facts/what-is-pcr-polymerase-chain-reactionhttps://www.businessinsider.com/how-coronavirus-throat-tests-work-rt-pcr-method-explained-2020-4 Infographic by Amreen Hashem