lymphocytosis, showing abundant white blood cells

lymphocytosis covid19 inflammation white monocyte microbiology medical leukocyte infection 3d illustration research cell blood activity disease neutrophil immunity phagocyte phagocytosis microscope immune sarscov2 vaccine vaccination corona lymphocyte leukaemia leukemia hematology acute anemia oncology lymphoma cancer marrow bone chronic pathology lymphoblastic leukosis abnormal treatment b chemotherapy microscopic awareness blast leukocytosis anatomy