Humans 14 human 14 sensitivity and specificity 12 Molecular Diagnostic Techniques 11 molecular diagnosis 11 Sensitivity and Specificity 10 genetics 10 Article 9 procedures 7 controlled study 5 diagnostic test accuracy study 5 isolation and purification 5 Diagnostic Techniques and Procedures 4 Nucleic Acid Amplification Techniques 4 diagnosis 4 diagnostic accuracy 4 diagnostic procedure 4 microbiology 4 COVID-19 3 COVID-19 Testing 3 Polymerase Chain Reaction 3 RNA 16S 3 RNA, Ribosomal, 16S 3 Real-Time Polymerase Chain Reaction 3 SARS-CoV-2 3 adult 3 bacterial gene 3 female 3 major clinical study 3 male 3