This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from product quality group. The reporter is the patient. A 68-year-old female patient (not pregnant) received BNT162b2 (BNT162B2), on 26Feb2021 as dose 1, single (Lot number: EN6198), in left arm, on 19Mar2021 as dose 2, single (Lot number: ER8727), in left arm and on 12Nov2021 as dose 3 (booster), single (Lot number: FF2590) at the age of 67 years, in left arm for Covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. The following information was reported: VACCINATION FAILURE (medically significant), COVID-19 (medically significant), outcome "unknown" and all described as "COVID-19". The patient underwent the following laboratory tests and procedures: SARS-CoV-2 test: (17May2022) Positive. Therapeutic measures were taken as a result of vaccination failure, Covid-19. Clinical course: On 08May2022 the treatment start with antiviral (Lot number FY0471). On 13May2022 the treatment was stopped. On 17May2022 at 11:00 PM patient had recurrence of symptoms and positive Covid test result 4 days after completing treatment. Conclusion: As part of the simplification process, the following Complaint Records were classified as Product Use Attributes // Lack of Effect and have been moved to Closed (No Investigation) state referencing a previously completed investigation for the same product and lot as per the 'One and Done' business process according to in Q1215 and/or Q1252. Conclusion of Previously Completed Investigation: The complaint for lack of effect of the PFIZER BIONTECH COVID-19 VACCINE lot EN6198 was investigated. The investigation included a review of manufacturing and packaging batch records, deviation investigations, and an analysis of complaint history for the reported lot. The final scope included the reported finished goods lot EN6198, fill lot EN5330, and the formulated drug product lot EN5319. A complaint sample was not returned, and photographs were not received. No related quality issues were identified during the investigation. There is no impact to product quality. No root cause or corrective/preventative actions were identified as the complaint was not confirmed. All release testing performed prior to the release of the reported batch was within specifications. The complaint for lack of effect of the PFIZER BIONTECH COVID-19 VACCINE lot ER8727 was investigated. The investigation included a review of manufacturing and packaging batch records, deviation investigations, and an analysis of complaint history for the reported lot. The final scope included the reported finished goods lot ER8727, fill lot EP8679, and the formulated drug product lot EP8566. A complaint sample was not returned, and photographs were not received. No related quality issues were identified during the investigation. There is no impact to product quality. No root cause or corrective/preventative actions were identified as the complaint was not confirmed. All release testing performed prior to the release of the reported batch was within specifications. The complaint for lack of effect of the PFIZER BIONTECH COVID-19 VACCINE lot FF2590 was investigated. The investigation included a review of manufacturing and packaging batch records, deviation investigations, and an analysis of complaint history for the reported lot. The final scope included the reported finished goods lot FF2590, fill lot FF2559, and the bulk formulated drug product lot FE5320. A complaint sample was not returned. No related quality issues were identified during the investigation. There is no impact to product quality. No root cause or CAPA were identified as the complaint was not confirmed. All release testing performed prior to the release of the reported batch was within specifications.