Figure 4. Chest radiographic findings of scrub typhus. Initial radiograph in a 75-year-old woman shows septal lines, ground-glass opacity, peribronchial cuffing (arrows), redistribution of pulmonary vasculature, and an increased cardiothoracic ratio, as well as bilateral pleural effusion. Follow-up radiograph (not shown), obtained 4 days after treatment, revealed a decrease in the extent of parenchymal opacity.