Abstract :
Coronaviruses: CoVs, is related to the family of Coronaviridae. The SARS-CoV-2: severe acute respiratory syndrome coronavirus 2, is unique strain of RNA viruses. The recent pandemic caused by coronavirus SARS-CoV-2 is threatening the human population worldwide. The patients with severe forms may develop severe pneumonia and may fatal. The COVID-19 range from a mild to severe form., SARS-CoV-2 infected patients shows severe lymphopenia in about 2/3 cases. In patients with severe disease lymphocyte subset counts in the peripheral blood owere significantly reduced. The predictor biomarker for assessing disease and monitoring with SARS-CoV-2 infection is done by peripheral blood CD4 and CD8 T cells' count. It is necessary to do more studies on larger populations and detail understanding of Tell immunity and for new treatment strategies.
Keyword :
Coronaviruses, COVID19 biomarkers, CD4 and CD8 T cells, Prognostic role T lymphocytes