HAVCR2 and COVID-19: While severe COVID-19 patients showed a significant increase in Th-Naive-Tim3+ (day 4: Mean±SD 26.30±31.60- 7.87±8.94; day1: Δ18.43; p=0.019), Th-EM-Tim3+ (day 4: Mean±SD 25.21±30.68-8.97±8.90; day 1: Δ16.24; p=0.033), and Th-CM-Tim3+ (day4: Mean±SD 18.70±26.22-5.13±9.63; day 1: Δ 13.57; p=0.041) (Table 3, Figure 8).