The patient remained critically ill following intubation. Seven days after intubation he developed a right sided pneumothorax and required a chest tube. The liver function tests, blood urea nitrogen (BUN), and creatinine remained stable. During his ICU stay, he was fully therapeutically heparinized as well. He developed no evidence of secondary bacterial infection. We obtained consent and administered 200 mL of convalescent plasma. He remained stable without significant change in his condition over the next several days.