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 medications: 1. hydrochlorothiazide 40 mg by mouth daily. 2. sertraline 50 mg by mouth daily. 3. metronidazole 500 mg p.o. t.i.d. until . 4. acetaminophen 325-650 mg by mouth every four to six hours as needed. 5. heparin 5,000 units subcutaneously every eight hours until the patient is ambulating. dr., 12-aeb dictated by: medquist36 procedure: venous catheterization, not elsewhere classified continuous invasive mechanical ventilation for 96 consecutive hours or more insertion of endotracheal tube arterial catheterization pulmonary artery wedge monitoring infusion of drotrecogin alfa (activated) diagnoses: acidosis acute kidney failure with lesion of tubular necrosis unspecified essential hypertension hyposmolality and/or hyponatremia severe sepsis unspecified disease of pericardium alkalosis pneumococcal pneumonia [streptococcus pneumoniae pneumonia] meningitis due to unspecified bacterium 

Answer: The patient is high likely exposed to