Clinic Value Analysis of Combined Detection of White Blood Cells and T-cell Subgroups in a Patient with SARS-CoV-2 Infection

To analyze and assess the changes of peripheral blood cells of a patient with SARS-CoV-2 infection, we collected and retrospectively analyzed the white blood cells, T-cell subgroups and interleukin 6 (IL-6) of a patient with COVID-19. Compared to the corresponding normal range, the percent of eosinophiles (ESO%) and count of EOS decreased; the percent of T-cell subgroup with double negative for cluster of differentiation 4 and 8 (CD4-CD8- T%) increased. The concentration of IL-6 was 21.5 pg/ml, which far exceeded the normal range (0-3.4 pg/ml). These results indicated that some indices of peripheral blood cells could be taken as reference parameters to assess the infection or severity of SARS-CoV-2.