chest x-ray shows numerous bilateral patchy opacities; catastrophic brain bleed; Brainstem reflexes were lost; Patient died; shortness of breath; nausea; diarrhea; worsening shortness of breath/numerous bilateral patchy opacities; immunosuppressed status; This is a spontaneous report from a contactable pharmacist and a contactable other health professional.  A 61-year-old female patient (not pregnant) received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, lot number: EL9261), intramuscular at arm right on 28Jan2021 (at the age of 61 years) at single dose for COVID-19 immunization.  The patient medical history included bilateral lung transplant on 23Jun2017, lymphangioleiomyomatosis, hepatocellular carcinoma, antibody mediated rejection of lung transplant , bronchiolitis obliterans syndrome, grade 0P, major depressive disorder, RLS (restless legs syndrome), chronic insomnia, long term current use of systemic steroids OSA (obstructive sleep apnea), iron deficiency anemia, bilateral sciatica, hoarseness of voice, memory change, laryngeal stridor, pure hypercholesterolemia senile nuclear cataract, bilateral myopia of both eyes, osteoporosis without current pathological fracture, alopecia, immunosuppressed status, all from an unknown date and unknown if ongoing.  Concomitant medication included acyclovir (formulation: capsule, strength: 200 mg) oral at 200 mg twice daily, salbutamol (ALBUTEROL HFA) as needed (MCG/ACT inhaler take 2 puffs by inhalation every 4 hours as needed) for wheezing (shortness of breath), atorvastatin (LIPITOR, formulation: tablet) oral at 80 mg once a day, azithromycin (ZITHROMAX, formulation: tablet)oral at 250 mg (every Monday, Wednesday, Friday), bupropion hydrochloride (WELLBUTRIN XL, formulation: tablet, strength: 150 mg) oral at 150 mg once a day, calcium citrate/cholecalciferol (CALCIUM + VITAMIN D, formulation: tablet) oral at 2 dose form once a day (every morning), everolimus (ZORTRESS, formulation: tablet, strength: 1 mg) oral at 2 mg twice a day, fluticasone propionate/salmeterol xinafoate (ADVAIR, strength: 500 ug/ 20 ug) twice daily (1 puff by inhalation), gabapentin (NEURONTIN, formulation: capsule, strength:100 mg) oral at 300 mg daily (by mouth nightly), loratadine (CLARITIN, formulation: tablet, strength: 10 mg) oral at 10 mg as needed, metoprolol tartrate (LOPRESSOR, formulation: tablet, strength: 25 mg)oral at 50 mg twice daily, minoxidil (ROGAN, strength: 5%) topical apply 1 cap full every other day to affected area on scalp for alopecia, ondansetron (ZOFRAN, formulation: tablet, strength: 4 mg) oral at 4 mg as needed for nausea, pantoprazole sodium sesquihydrate (PROTONIX, formulation: tablet, strength: 40 mg) oral at 40 mg once a day, prednisone (DELTASONE, formulation: tablet, strength: 5 mg) oral at 5 mg daily (every morning), sertraline hydrochloride (ZOLOFT, formulation: tablet, strength: 100 mg) oral at 100 mg twice a day (every morning), sulfamethoxazole/trimethoprim (BACTRIM) 400-80 mg per tablet (1 tablet by mouth every Monday, Wednesday, Friday), tacrolimus (formulation: capsule) at 3 mg daily (2 mg every morning and 1 mg at night), salbutamol sulfate (PROVENTIL HFA) as needed for wheezing (shortness of breath), salbutamol sulfate (VENTOLIN HFA) as needed for wheezing (shortness of breath) , salbutamol sulfate (PROAIR HFA) as needed for wheezing (shortness of breath), ascorbic acid/ferrous fumarate/folic acid/ retinol (PRENATAL, formulation: tablet) oral daily.  The patient previously took NSAIDs and voriconazole and experienced drug allergies. It was reported that the patient presented to emergency department (ED) on 04Feb2021 with chief complaint of worsening shortness of breath, nausea and diarrhea for past week since receiving since receiving COVID-19 vaccine. Full viral panel including COVID-19 was not detected. All blood cultures and respiratory cultures were negative. Patient chest x-ray shows numerous bilateral patchy opacities which is significantly different from her previous chest x-ray here. Empiric rejection treatment initiated including high dose methylprednisolone, plasmapheresis, IVIG, thymoglobulin. She continued to decline and ultimately required intubation, proning and paralyzing on 08Feb2021 and then VV ECMO cannulation on 13Feb2021. Acute pupil exam changes in the early am hours of 15Feb2021 prompted urgent head CT which revealed catastrophic brain bleed. Brainstem reflexes were lost soon after. Despite placing an EVD emergently at bedside, brain stem reflexes were not recovered. The events were all serious. The patient outcome of the events was fatal. The patient died on 15Feb2021.  It was not reported if an autopsy was performed.; Sender's Comments: Based on available information, a possible contributory role of the subject product, BNT162B2 vaccine, cannot be excluded for the reported events due to temporal relationship. However, the reported event may possibly represent intercurrent medical conditions in this patient.  There is limited information provided in this report.  Additional information is needed to better assess the case, including complete medical history, diagnostics, counteractive treatment measures and concomitant medications. This case will be reassessed once additional information is available.  The impact of this report on the benefit/risk profile of the Pfizer product is evaluated as part of Pfizer procedures for safety evaluation, including the review and analysis of aggregate data for adverse events. Any safety concern identified as part of this review, as well as any appropriate action in response, will be promptly notified to Regulatory Authorities, Ethics Committees and Investigators, as appropriate.; Reported Cause(s) of Death: Chest x-ray shows numerous bilateral patchy opacities; Catastrophic brain bleed; Brainstem reflexes were lost; shortness of breath; nausea; Diarrhea; Worsening shortness of breath/numerous bilateral patchy opacities