COVID pneumonia; Hematological; bleeding; having hemoxysis; slight troponin increase; GI bleed; headaches; COVID-19 test was positive; COVID-19 test was positive; nauseous; abdominal discomfort; body aches; This is a spontaneous report from a contactable physician. A 52-year-old female patient received her first dose of BNT162B2(PFIZER-BIONTECH COVID-19 VACCINE, Batch/Lot number was not reported), via an unspecified route of administration at the age 52-year-old on 12Mar2021 at single dose for COVID-19 immunisation. Medical history included hemodialysis for many years, adherent to medical care, multiple DVTs and Pes (On anticoagulants), morbid obesity, Patient was on dialysis for renal failure and had lupus anticoagulant (positive), Afib, allergic to shellfish. Family history included renal failure and had lupus anticoagulant. Concomitant medications included warfarin sodium (COUMADIN); metoprolol; amitriptyline; calcitriol; ergocalciferol (VIT D); calcium; calcium acetate (PHOSLO); amiodarone; albuterol. The patient previously allergic to Cipro, clindamycin, doxycyclin, Lyrica, tetracycline. The patient previously was non-responder to hepatitis B vaccine. The patient previously received first dose of BNT162B2(PFIZER-BIONTECH COVID-19 VACCINE) on 17Feb2021 for COVID-19 immunisation. The patient hasn't been treated with immunomodulating or immunosuppressing medications or received any other vaccines around the time of COVID-19 vaccination. The patient wasn't smoker/ former smoker. There was no any other vaccinations within four weeks prior to the first administration date of the suspect vaccine. A nephrologist who reported patient in her hemodialysis unit who were vaccinated with BNT162b2 but were recently diagnosed with COVID-19. More detail is below on each patient. The patient COVID results were sent to the local health department for genetic sequencing (pending) and SARS titers were drawn (pending). Unfortunately, the HD unit does not have B/L information (although the B/L # was put on the patient's COVID vaccine cards, a record was not kept in the HD unit). Day she came in for dialysis she was already short of breath she said she'd had body aches for 5 days, got short of breath on 05Apr2021. The day before, started getting cough, nauseous, chills, abdominal discomfort on 04Apr2021. The patient was sent to the ER from dialysis and was admitted for SOB on 05Apr2021 and passed away on 09Apr2021 due to a GI bleed. Patient is over 500lbs so was unable to fit into hospital imaging equiment for CT scans or weight measurements. COVID-19 test was positive on 05Apr2021; the patient experienced COVID pneumonia on 05Apr2021. The patient admitted on 05Apr2021 to regular floor. The patient was moved to an Intensive Care Unit on 06Apr2021. The patient experienced short of breath on 05Apr2021 and required much more O2 than normal. Sometimes required BP support while on Dialysis and BP was 113/61 in ER. Pressure dropped to 100/70 and required mitrodrine after fluid was removed. The patient needed 4 liters supplemental O2 vs. only needing 2 liters at home. The patient experienced tachypnea and hypoxemia and no Respiratory failure. Respiration was 22. After 5 litres of O2 improved. Pulse 93 in ER. Cardiovascular: There was no heart failure, cardiogenic shock, Acute myocardial infarction, arrhythmia and myocarditis. The patient Had chest pain which resolved when O2 was administered. Gastrointestinal/Hepatic: There was no Vomiting, Diarrhea. The patient experienced nausea but no vomiting or diarrhea and complained of abdominal pain. There was no Jaundice and acute liver failure. Neurological: There was no altered consciousness, altered consciousness, encephalopathy, meningitis and cerebrovascular accident. The patient had headaches a couple days before admitting to ER. Hematological: There was no Thrombocytopenia, Disseminated intravascular coagulation. INR was 3 due to large dose of coumadin, and platelets were 180 and white count 6.8. Slight troponin increased at 0.37 at admittance, BNP 39. The patient started coughing up blood, having hemoxysis and bleeding on unspecified date. Laboratory test or diagnostic studies was reported that test for SARS-CoV-2 by PCR, or other commercial or public health assay. Xray showed vascular congestion with superimposed infiltrate which could represent pneumonia. Blood count was 11 and 36.7% at ER. Clinical chemistry: Sodium was 133; BUN was 68; Creatinine was 10. Evidence of hypoxemia: Pulse oO2 was 90 in ER.  CT scans: unknown results. Urinalysis: On dialysis so does not make urine. The patient had received Remdesivir, from 06Apr2021, Hydroxychloroquine/chloroquine, Azithromycin from 06Apr2021 and Corticosteroids from 06Apr2021 for COVID-19.  The outcome of event "GI bleed" was fatal, the event "chest pain" and "body aches" was recovered and other events was unknown. The patient died on 09Apr2021. An autopsy was not performed.  Information on the lot/batch number has been requested.; Sender's Comments: Based on temporal association, a contributory role of the suspect drug cannot be excluded for the events vaccination failure, COVID-19, COVID-19 pneumonia, and sepsis. However, the patient's multiple medical comborbidities including renal failure requiring dialysis, lupus, and morbid obesity along with the risk of COVID-19 infection in light of the current pandemic are the more likely explanations for the development of these infections. The events gastrointestinal hemorrhage, hemorrhage, hemolysis and troponin increased are attributed to intercurrent medical conditions, and are considered unrelated to the suspect drug. The patient is currently on warfarin which may increase the risk for bleeds. This case will be reassessed upon receipt of additional information. 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: GI bleed