Background: Mortality in Dengue patients hospitalized in Dr. Kariadi Hospital, Semarang is very high. The most common cause of death were bleeding and Multiple Organ Dysfunction including pulmonary dysfunction that manifest as Acute Lung Injury (ALI) and Acute Respiratory Distress Syndrome (ARDS). The previous study have shown the incidence of ARDS in DSS but the incidence of pulmonary dysfunc…