COVID-19(67) SARS-CoV-2(66) coronavirus(65) acute respiratory syndrome(60) Coronavirus disease 2019(35) coronavirus disease(31) Brazil(31) acute respiratory syndrome coronavirus(25) polymerase chain(24) pandemic(23) Infection(23) severe acute respiratory syndrome Coronavirus(22) Diagnosis(22) reverse transcription(21) tested(20) RT-qPCR(20) acute respiratory syndrome coronavirus 2(19) respiratory(19) Analysis(17) Chain Reaction(17) reported(17) positive(17) Quantitative(17) polymerase chain reaction(17) molecular(16) Surveillance(16) Lineage(15) Support(15) RT-PCR(14) Evidence(13)