Upregulation of PD-1 Expression and High sPD-L1 Levels Associated with COVID-19 Severity

Danielle Rosa Beserra1, Ricardo Wesley Alberca1, Anna Claudia Calvielli Castelo Branco1

  • 1Laboratory of Dermatology and Immunodeficiencies, LIM 56, Tropical Medicine Institute, School of Medicine, University of Sao Paulo, Brazil.

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