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What do we Know about smell and taste dysfunction by SARS-CoV-2.Predictive value of the Venezuelan Olfactory test and RT-PCR analysis in viral infection diagnosis

Smell and taste disorders are reported very frequently and at an early stage in the evolution of the infectious disease caused by the SARS-CoV-2. These symptoms could be sensitive and specific to establish the condition of the infection, and may suggest the flow of decisions as to further therapy. We asked whether smell and taste impairment are earlier and more sensitive symptoms than the RT-PCR molecular assays for SARS-CoV-2 detection.