antibiotic agent; asciminib; chloroquine; dasatinib; heparin; imatinib; ivermectin; nilotinib; oseltamivir; ponatinib; steroid; adult; aged; artificial ventilation; bacterial infection; Brazil; cancer patient; chronic kidney failure; chronic myeloid leukemia; chronic obstructive lung disease; comorbidity; conference abstract; coronavirus disease 2019; diabetes mellitus; drug therapy; emphysema; hematologic malignancy; hematologist; hospitalization; human; hypertension; intensive care unit; leukocyte count; lung infection; major clinical study; male; middle aged; mortality; nose smear; pulmonary hypertension; reinfection; remission; serology; surgery; transplantation; treatment interruption; vaccination