positive COVID test; positive COVID test; had the Moderna booster shot; had the Moderna booster shot; had the Moderna booster shot; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A female patient received bnt162b2 (COMIRNATY) (Batch/Lot number: unknown) as dose 1, single and (Batch/Lot number: unknown) as dose 2, single for covid-19 immunisation; covid-19 vaccine mrna (mrna 1273) (MODERNA COVID-19 VACCINE), administration date 02Nov2021 (Batch/Lot number: unknown) as dose 3 (booster), single for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. The following information was reported: OFF LABEL USE (medically significant), INTERCHANGE OF VACCINE PRODUCTS (medically significant), IMMUNISATION (medically significant) all with onset 02Nov2021, outcome "unknown" and all described as "had the Moderna booster shot"; DRUG INEFFECTIVE (medically significant), COVID-19 (medically significant) all with onset 27Nov2021, outcome "unknown" and all described as "positive COVID test". The patient underwent the following laboratory tests and procedures: sars-cov-2 test: (27Nov2021) positive, notes: PCR COVID test and it came as positive. Clinical course: Consumer stated, "She just have a question. She received the vaccine. Was that because the antibodies in the vaccine was showing up and was that normal to have a positive COVID test after vaccine" Consumer stated "she was fully vaccinated. and she had a COVID test that came back positive and she was wondering why was that even she had booster." Consumer stated, "she had the two doses of the Pfizer and then she got the booster shot, the Moderna. She got the Moderna booster shot on 02Nov2021 and on 27Nov2021 she tested positive for the COVID. Could it be possible that could be false positive as she was fully vaccinated." Consumer stated, "The reason for her call was that why did she had a positive COVID test as she was fully vaccinated". Consumer stated, "she guessed she was wondering why, okay, you referred her to a different number so do she need to answer these question because she was not having any type of adverse reaction. She just was wandering, even if you were fully vaccinated, was this normal to test positive and could it be a false positive." When informed that the questions are voluntary and can be skipped if the consumer was not comfortable, consumer stated, "Okay, so do the question have anything, do really help her in figuring out why she was tested positive or are these question for something else" When informed the questions are for documenting the experiences of the consumers, Consumer stated, "Okay, so was that considered like an adverse reaction having a positive COVID test or should she just wait to call that number that you gave she to talk to the Medical professional." When informed organization will help with all the questions, consumer stated, "Okay because she didn't see where it was helping she with the questions and everything that she was trying to figure out why she had to answer. The lot number for bnt162b2 was not provided and will be requested during follow up.