COVID 19 Treatment; COVID 19 Treatment; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team, Program ID:. The reporter is the patient.  An 85-year-old female patient received bnt162b2, bnt162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), in Jan2023 as dose 4 (booster), single (Batch/Lot number: unknown) for covid-19 immunisation; bnt162b2 (BNT162B2), as dose 1, single (Batch/Lot number: unknown), as dose 2, single (Batch/Lot number: unknown) and as dose 3 (booster), single (Batch/Lot number: unknown) for covid-19 immunisation. The patient's relevant medical history included: "allergic reaction to polyethylene glycol" (unspecified if ongoing), notes: 30-40 years ago had allergic reaction to PEG from laxative; "Diabetes" (unspecified if ongoing); "Vision problems" (unspecified if ongoing); "problem with respiratory" (unspecified if ongoing). The patient's concomitant medications were not reported. Past drug history included: Pneumonia shot for Pneumococcal Immunisation; Flu shots for Influenza Immunisation. The following information was reported: DRUG INEFFECTIVE (medically significant), COVID-19 (medically significant) all with onset Mar2023, outcome "unknown" and all described as "COVID 19 Treatment". The event "covid 19 treatment" required physician office visit. The patient underwent the following laboratory tests and procedures: SARS-CoV-2 test: (Mar2023) Positive, notes: She had Covid last Mar2023, she had sore throat and tested herself with the test kits that come in the mail and went to the doctor who tested her right away and was positive. Therapeutic measures were taken as a result of drug ineffective, covid-19 which included Paxlovid. Clinical course: Patient and her husband had taken 4 of the Pfizer vaccines had the the very 1st one, had the Omicron, and had the had the BA5. Prior to her getting the shot she did not take it right away because she had an allergic reaction to polyethylene glycol (PEG) from another medication which is a thousand times stronger. It didn't turn out to be serious, she said. So, she researched and found out we have 53 mcgs of PEG in the Pfizer Covid vaccines. She and husband didn't have any reactions to it. She wanted to know if the PEG content of the new vaccine same with the old vaccines and about the PEG number. She also had Pneumonia shot and flu shots. She had also asked about the percentage or level of protection that this new Covid vaccine provides as she heard it was about 87% from the old vaccines. She had taken her last Pfizer Covid vaccine last Jan2023. She had Covid last Mar2023, she had sore throat and tested herself with the test kits that come in the mail and went to the doctor who tested her right away and was positive. She took Paxlovid on 2nd or 3rd day. She shared he PEG story. 30-40 years ago, She had allergic reaction to PEG from laxative. She also had diabetes. She also shared as she had a problem with respiratory and flu shots helped her a lot. She also mentioned having vision problems.  The information on the batch/lot number for bnt162b2, bnt162b2 omi ba.4-5, bnt162b2 has been requested and will be submitted if and when received.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202300328783 Same drug, different patient, different event;