“…Two proteins, Carbonic anhydrase 6 (CA6) and Cystatin-SA (CYST-SA), were highly expressed by COVID-19 symptomatic inpatients with respect to asymptomatic subjects, although both were reduced with respect to controls, in agreement with the recent findings from Munoz-Prieto et al [37] . Both proteins are involved in taste perception [20] , [38] , [39] . These findings are in line with the SARS-CoV-2 correlated ageusia, although in our series this clinical manifestation was extremely rare.…”