T cells: Patients with persistent symptoms over 4 months following COVID-19 onset presented a lower frequency of CD8+ T cells expressing CD107a, a marker of degranulation, in response to Nucleocapsid (N) peptide pool stimulation, and a more rapid decline in the frequency of N-specific interferon-γ-producing CD8+ T cells [10]. This evidence concerns the gene LAMP1 and COVID-19.