Correlations Between Anti-SARS-CoV-2 Titers, CD4+ T-Cell Counts, and COVID-19 Severity
Coronavirus disease 2019 (COVID-19) presents with diverse symptoms ranging from mild to severe. Patients with severe COVID-19 can show impaired humoral and cellular immunity and excessive pro-inflammatory cytokine production. Antibodies are generated against severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2)...