Nucleic Acid Amplification Techniques Humans 6 human 6 genetics 5 nucleic acid amplification techniques 5 Molecular Diagnostic Techniques 4 molecular diagnosis 4 sensitivity and specificity 4 Article 3 COVID-19 3 SARS-CoV-2 3 Sensitivity and Specificity 3 procedures 3 COVID-19 Testing 2 Polymerase Chain Reaction 2 RNA, Viral 2 diagnosis 2 diagnostic test accuracy study 2 intermethod comparison 2 loop mediated isothermal amplification 2 meta analysis 2 nucleic acid amplification 2 polymerase chain reaction 2 receiver operating characteristic 2 reverse transcription polymerase chain reaction 2 systematic review 2 virus RNA 2 Alphacoronavirus 1 Animals 1 Asymptomatic 1