T-cell study adds to debate over duration of COVID-19 immunity
"There is still a lot for us learn before we have a full understanding of how immunity to COVID-19 works."
Nano-vaccine mechanism of action: following injection, the nano-vaccine internalizes into immune cells leading to activation of T cells to recognize and attack melanoma.(photo credit: PROF. SATCHI-FAINARO)ByREUTERS
