tested positive for Covid; tested positive for Covid; third dose; This is a spontaneous report received from contactable reporter(s) (Other HCP) from medical information team and product quality group. The reporter is the patient.  A 55 year-old female patient received bnt162b2 (BNT162B2), administration date 20Aug2021 (Lot number: FC3181) at the age of 55 years as dose 3, single, administered in arm left, administration date 31Mar2021 (Lot number: ER8734) as dose 2, single and administered in arm right, administration date 10Mar2021 (Lot number: EN6208) as dose 1, single for covid-19 immunisation. Relevant medical history included: "Hypogammaglobulinaemia" (unspecified if ongoing), notes: Verbatim: Hypogammaglobulinaemia, Diagnosed 3 -3 1/2 years ago.; "Neutropenia" (unspecified if ongoing), notes: Verbatim: Neutropenia, Diagnosed 5-6 years ago; "COPD", start date: 2015 (unspecified if ongoing), notes: Verbatim: COPD; "Seizures", start date: 2008 (unspecified if ongoing), notes: Verbatim: Seizures; "Organic brain disease", start date: 2007 (unspecified if ongoing), notes: Verbatim: Organic brain disease, First Craniotomy was in 2008.; "immunocompromised" (unspecified if ongoing). Concomitant medication(s) included: B-12; VIT D [COLECALCIFEROL]. The following information was reported: IMMUNISATION (medically significant) with onset 20Aug2021, outcome "unknown", described as "third dose"; COVID-19 (medically significant), VACCINATION FAILURE (medically significant) all with onset 06Jan2022, outcome "unknown" and all described as "tested positive for Covid". The patient underwent the following laboratory tests and procedures: body temperature: (unspecified date) 102.9, notes: 102.9 degrees; oxygen saturation abnormal: (unspecified date) oxygen was not great; sars-cov-2 test: (16Jan2022) positive.When providing her weight, she said she is too fat and is between 143-145. She does not have a primary care, but Restore Health is the one that did test, and they have a primary care in their office. They wanted to hospitalize her, but she refused it, because she did not want any kind of co-infection. She decided not to go. Her immune doctor suggested she get it to prevent her from getting COVID.She is on quite a bit of medications and did not know if they are relevant. She is on breathing medications, anti-seizures mediations, B-12 shots, Vitamin D supplements. She is also on stomach medications. All were started prior to getting vaccines. No further details provided. Oxygen was not great and she sounded hospital. Since she was immunocompromised, they suggested she go to the hospital. She was too scared and had people tell her not to that went to the hospital because they heard of people going to the hospital and getting the flu at the same time, so she did not want to go and run that risk. No further details on any others. She decided to stay and home and get better. She did not want to get a co-infection. They just tested her for COVID virus and she was positive. Originally, the Urgent Care doctor was going to prescribe steroids, but she retracted it and wanted her to go to the hospital instead. She confirmed that she never actually went to the emergency room or the hospital. Physician Office? No. She has one today at 14:40 scheduled. Prior Vaccinations (within 4 weeks) If applicable, list any other vaccinations within four weeks prior to the first administration date of the suspect vaccine(s):none.  No follow-up attempts are possible. No further information is expected; Sender's Comments: Based on the information provide and plausible temporal association, the causality between BNT162B2 and IMMUNISATION,  VACCINATION FAILURE, COVID-19  cannot be completely excluded.,Linked Report(s) : US-PFIZER INC-202200037074 same reporter/drug/event, different patient