IFNG and COVID-19: The top Gene Ontology (GO) terms in B cells include interferon-gamma-mediated signaling pathway (GO:0060333), cellular response to type I interferon (GO:0071357), immune response-activating signal transduction (GO:0002757), and positive regulation of cytokine production (GO:0001819) indicating the alterant immune response in B cell belonging to HC, moderate, severe, and critical COVID-19 patients.