The investigators will collect plasma and PBMCs from consenting subjects. The investigators will evaluate the expression of miRNAs, lncRNAs and cytokines in patients affected by LONG COVID admitted to IRCCS Policlinico San Donato during the acute phase of COVID-19. In particular, miRNAs will be evaluated in plasma samples while lncRNAs in PBMC samples to clarify their potential as biomarkers.
