When comparing nonvaccinated, infected individuals with coronavirus disease 2019 (COVID-19; as well as asymptomatic ones) versus non-infected, different branched N-glycan expression amounts in peripheral CD8+ T cells were reported [83]; this suggested that initial stages of infection response might involve the remodeling of the glycoprofiles of circulating T cells, although this remains to be investigated. Here, CD8A is linked to COVID-19.