tested positive for Covid after being vaccinated/3.5 months later she tested positive for Covid; tested positive for Covid after being vaccinated; tested positive for Covid after being vaccinated; Interchange of Vaccine Products; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 63-year-old female patient received BNT162b2 (BNT162B2), on 24Nov2021 as dose 3 (booster), single (Lot number: FJ620) and on 04May2022 as dose 4 (booster), single (Lot number: FJ4789) at the age of 63 years for covid-19 immunisation; elasomeran (MODERNA COVID-19 VACCINE), on 13Apr2021 as dose 1, single (Lot number: 007B21A) and on 11May2021 as dose 2, single (Lot number: 038C21A) for covid-19 immunisation. The patient's relevant medical history included: "She did have Covid the end of Oct beginning of Nov2020" (unspecified if ongoing), notes: Confirmed it was before having the shots. The patient took concomitant medications. The following information was reported: INTERCHANGE OF VACCINE PRODUCTS (medically significant) with onset 24Nov2021, outcome "unknown"; DRUG INEFFECTIVE (medically significant), COVID-19 (medically significant) all with onset Aug2022, outcome "recovered" (Aug2022) and all described as "tested positive for Covid after being vaccinated"; DISEASE RECURRENCE (medically significant), outcome "unknown", described as "tested positive for Covid after being vaccinated/3.5 months later she tested positive for Covid". The patient underwent the following laboratory tests and procedures: SARS-CoV-2 test: positive, notes: Agent states she has a caller on the line calling because she tested positive 2 weeks ago and was prescribed Paxlovid; positive, notes: within 2 days after taking Paxlovid her cold symptoms dissipated and within 2.5 days after taking pill and took a test and came up like it was positive; Negative, notes: 3.5 days later she took another test again and it came up negative; positive, notes: 3.5 months later she tested positive for Covid. Therapeutic measures were taken as a result of drug ineffective, covid-19. Patient took Paxlovid tablet from 10Aug2022 to 14Aug2022 for COVID-19 treatment. Patient was tested positive 2 weeks ago and was prescribed Paxlovid. She mentioned she took the first Moderna shots and had the Pfizer boosters in Nov2021 and May2022. She had called her HCP because her COVID-19 symptoms started off with cough and a dry throat for a couple of days and started sneezing and she thought she had a cold and housemate has a compromised mother so she did a COVID-19 test and came out positive. She then started to masked and isolate and then she believed that the next morning called her HCP and told them her symptoms and they prescribed the Paxlovid. Within 2 days after taking Paxlovid her cold symptoms dissipated and within 2.5 days after taking pill and took a test and came up like it was positive and other line next to it. Then 3.5 days later she took another test again and it came up negative and another friend of her he tested both times and he was negative. Attempted clarification and she stated that that 2.5 days after finishing Paxlovid it was a faint positive, it had the faint negative line. But then 3 days later it was negative. She stated she had already listed to the whole reports with the previous agent of taking it with pregnancy birth control. She then confirmed that she was vaccinated. She had the Pfizer boosters on 24Nov2021 and 04May2022, so 3.5 months later she tested positive for COVID-19. She then stated she was happy with Paxlovid. She did have COVID-19 the end of Oct2020 beginning of Nov2020. Confirmed it was before having the shots. She also tested positive for Covid after being vaccinated.