Consider the following medical report that includes the patient's historical health records. Use it to predict the disease that the patient is high likely exposed to. 

 Medical Report: discharge status: the patient was to be discharged to an extended care facility. dr., 12-aew dictated by: medquist36 procedure: venous catheterization, not elsewhere classified venous catheterization, not elsewhere classified continuous invasive mechanical ventilation for 96 consecutive hours or more spinal tap incision of lung other endoscopy of small intestine insertion of endotracheal tube other bronchoscopy non-invasive mechanical ventilation percutaneous [endoscopic] gastrostomy [peg] temporary tracheostomy closed [endoscopic] biopsy of bronchus injection or infusion of cancer chemotherapeutic substance injection or infusion of nesiritide therapeutic leukopheresis diagnoses: pneumonia, organism unspecified urinary tract infection, site not specified congestive heart failure, unspecified other malignant lymphomas, unspecified site, extranodal and solid organ sites acute respiratory failure intestinal infection due to clostridium difficile chronic lymphoid leukemia, without mention of having achieved remission 

Answer: The patient is high likely exposed to