Article 2 COVID-19 2 Humans 2 SARS-CoV-2 2 SARS-CoV-2 testing Severe acute respiratory syndrome coronavirus 2 2 controlled study 2 diagnosis 2 human 2 isolation and purification 2 nonhuman 2 procedures 2 virology 2 2 propanol 1 COVID-19 Nucleic Acid Testing 1 COVID-19 testing 1 CRU 1 Chemical Precipitation 1 Healthy Volunteers 1 M-MLV reverse transcriptase purification 1 Phase I clinical trials 1 Point-of-Care Systems 1 Polymerase Chain Reaction 1 RNA directed DNA polymerase 1 RNA isolation 1 RNA purification 1 RNA, Viral 1 Taq polymerase 1 Taq polymerase purification 1 Time Factors 1