Tested positive for Covid; get the first vaccine from Moderna, and second one from Moderna and the third one, we get Pfizer; Booster; Recognized there is some symptoms, that is really weird; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP).  A 49 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 15Dec2021 (Lot number: FDO809) at the age of 49 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Diabetes-Type 2" (unspecified if ongoing), notes: Verbatim: Diabetes-Type 2; "Anaemia" (unspecified if ongoing), notes: Verbatim: Anaemia. Concomitant medication(s) included: METFORMIN taken for type 2 diabetes mellitus. Vaccination history included: Moderna covid-19 vaccine (Dose:2), administration date: 02May2021, when the patient was 48 years old, for covid-19 immunization; Moderna covid-19 vaccine (Dose:1), administration date: 21Apr2021, when the patient was 48 years old, for covid-19 immunization. The following information was reported: COVID-19 (non-serious) with onset 18Dec2021, outcome "unknown", described as "Tested positive for Covid"; INTERCHANGE OF VACCINE PRODUCTS (non-serious) with onset 15Dec2021, outcome "unknown", described as "get the first vaccine from Moderna, and second one from Moderna and the third one, we get Pfizer"; IMMUNISATION (non-serious) with onset 15Dec2021, outcome "unknown", described as "Booster"; FEELING ABNORMAL (non-serious) with onset 2021, outcome "unknown", described as "Recognized there is some symptoms, that is really weird". Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: Reporter stated, they got the first vaccine from Moderna, and second one from Moderna and the third one, they got Pfizer. So, they got the Pfizer, the booster one on the 15Dec. But after that they recognized there was some symptoms that was really weird. They felt it was from the Pfizer but after that they bring the kit, means the home test kit from the pharmacy and they tested, it was positive, it was today. Today, she went to bring the kit and the test was positive. So, she needed to know what the side effect was because they got the vaccine on the 15th and they got infected on the 18th, that was in only 5 days. The issue was when they got the (Pfizer Covid-19 Vaccine Booster)Booster one on the 15th. Reporter was informed about the Role of Pfizer Drug Safety. About first dose COVID-19 Booster Vaccine Reporter stated, she needed to correct the date. Because they had at the same dates. So, she needs to correct her as well. They received in the same date. So, it was 21Apr2021. Second dose of COVID-19 Vaccine received, Reporter stated, 02May2021. Reporter stated, she was in party. So, she did not know. The party, it was before back seven days ago, she was in party. But there were not any symptoms. After that they took the vaccine, and they did not have any symptoms. After they take the vaccine, someone called them, he said there was someone in the party, who tested positive for Covid. So, after they took the vaccine, we went to the clinic to test. They did the test in the clinic, it was negative. That was after, they took the vaccine and the same day on the 15th we took the test and it was negative, both of them. But they said she needed to repeat the test because it needs like 5 days to confirm the result. So, today she brought home the test kit from the Pharmacy and they tested and it was positive, both of them. Concomitant Product reporter stated, she was taking Metformin 1000 and she take iron. For (LOT# & Expiration date) of Pfizer Covid-19 Vaccine Booster, reporter stated, there was no Expiration date. They had the same. The product complaint was reported for same.  Description of Product Complaint: Reporter stated, "And she was in party. So, I do not know. The party, it was before back seven days ago, she was in party. But there is not any symptoms. After that 'we take' the vaccine and we did not had any symptoms. After we take the vaccine someone called us, he said there is someone in the party, who tested positive for Covid. So, after we took the vaccine, we went to the clinic to test. We did the test in the clinic, it was negative. That was after, we took the vaccine and the same day on the 15th we took the test and it was negative, both of us. But they said you need to repeat the test because it needs like 5 days to confirm the result. So, today I bring home the test kit from the Pharmacy and we tested and it was positive, both of us." Product details (LOT# & Expiration date) of Pfizer Covid-19 Vaccine Booster: Reporter stated, "I have only, they gave me the some paper work. It is the fax sheet 'recipient and 'coverage'. The number is 'FD08', I do not know this is 6. I think 69.The Expiration date, there is no expiration date. But the date which, I took is 15Dec2001 (clarified as:15Dec. 2021). It is from clinic. So, also I need to correct because they write it by hand. So, that some letters is not, it is FD0809, FDO869 (Later clarified as: FDO809 and captured as provided).There is no expiration date. I do not know where they should be write. Okay, So, it's not only me, me and my wife."  No follow-up attempts are possible. No further information is expected.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202101816275 same reporter/drug/event, different patient