COVID-19; nearly died from COVID-19; pneumonia; cardiac arrest; not breathing well; sick; COVID-19; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from product quality group.  A 38-year-old female patient received BNT162b2 (BNT162B2), on 05Mar2021 as dose 1, 0.3 ml single (Lot number: EN6199, Expiration Date: Jun2021), in left deltoid, on 26Mar2021 as dose 2, 0.3 ml single (Lot number: EN6206, Expiration Date: Jun2021), in left deltoid and on 13Dec2021 as dose 3 (booster), 0.3 ml single (Batch/Lot number: unknown) at the age of 37 years, in left deltoid for covid-19 immunisation. The patient's relevant medical history included: "Hypertension" (unspecified if ongoing), notes: Hypertension, Takes medication for that. It was managed. Been at least 5 years; "High BMI Is overweight" (unspecified if ongoing), notes: High BMI Is overweight, but not 600lbs. There were no concomitant medications. The following information was reported: COVID-19 (hospitalization, medically significant), VACCINATION FAILURE (hospitalization, medically significant) all with onset 09Jun2022, outcome "unknown" and all described as "COVID-19"; NEAR DEATH EXPERIENCE (hospitalization, medically significant), outcome "unknown", described as "nearly died from COVID-19"; PNEUMONIA (hospitalization, medically significant), outcome "unknown"; CARDIAC ARREST (hospitalization, medically significant), outcome "unknown"; DYSPNOEA (hospitalization), outcome "unknown", described as "not breathing well"; ILLNESS (hospitalization), outcome "unknown", described as "sick". The patient was hospitalized for covid-19, near death experience, pneumonia, cardiac arrest, dyspnoea, illness (start date: 11Jun2022, discharge date: 13Jun2022, hospitalization duration: 2 day(s)). The patient underwent the following laboratory tests and procedures: Blood gases: (unspecified date) elevated level of CO2; Chest X-ray: (unspecified date) pneumonia; Computerised tomogram head: (unspecified date) found nothing irregular; renal problem: (unspecified date) elevated; SARS-CoV-2 test: (unspecified date) Negative, notes: hospital did COVID test on patient and their COVID tests were negative; (09Jun2022) Positive; Troponin: (unspecified date) elevated troponin levels, notes: but doctors weren't sure if that was from the chest compressions caller did; Ultrasound therapy: (unspecified date) no problem with that; White blood cell count: (unspecified date) 18, notes: White blood cell count was 18; Electrocardiogram: (unspecified date) no problems, notes: Ran several EKGs, no problems with those.  Clinical course: The third dose was probably given middle of the day. Patient was on the brink of having too elevated levels indicating a renal problem, but that went down later. No other vaccinations done with four weeks prior to the suspect vaccine and there was no event. Reporter (spouse) had performed chest compressions on patient. Ambulance had to use defibrillator on patient. Patient was in cardiac arrest on 11Jun2022. Patient was foaming at mouth, not breathing well, unresponsive. They used CPR. Ambulance got patient stable enough to get to the hospital. Doctors at hospital did COVID test on patient and their COVID tests were negative, but found patient had antibodies suggesting a strong previous infection. Patient had COVID, it was just weird the hospital wasn't able to pick it up on their tests. The infection came quickly, patient was struggling form the complications. At hospital, PCR tests weren't able to identify the active COVID-19 infection, but patient was still very much sick. Reporter's whole house got COVID because one of caller's coworkers had COVID. It was unknown if culture was performed but don't believe hospital did blood culture. They were not entirely sure. Reporter stated they all felt kind of bad after getting the vaccine, so probably patient did take an antipyretic in a day or two. This was such an extreme case for patient. Doctors said it was an anomalous type thing. Patient was taking the Paxlovid now, been on that for two days now. No further details provided.  The information on the batch/lot number for BNT162b2 has been requested and will be submitted if and when received.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202200842702 Same patient and drug, different event separated in time;