Evaluation of the Levels of Peripheral CD3 ⁺ , CD4 ⁺ , and CD8 ⁺ T Cells and IgG and IgM Antibodies in COVID-19 Patients at Different Stages of Infection

Abstract

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in late 2019 in China. This virus is a serious threat to people not only in China but also worldwide, where it has been detected in over 222 countries. It has been reported that ∼3.4% of SARS-CoV-2-infected patients have died. The significance of our study relies on the fact that an enzyme-linked immunosorbent assay and flow cytometry were used to measure the levels of antibodies and cellular immune response, respectively, from clinical samples of patients infected with SARS-CoV-2.

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