After 1st booster she tested positive for COVID; After 1st booster she tested positive for COVID; This is a spontaneous report received from a contactable reporter(s) (Nurse) from medical information team, Program ID. The reporter is the patient.  An 82-year-old female patient received BNT162b2 (BNT162B2), on 23Jan2021 as dose 1, single (Batch/Lot number: unknown), on 13Feb2021 as dose 2, single (Batch/Lot number: unknown) and on 04Oct2021 as dose 3 (booster), single (Batch/Lot number: unknown) at the age of 80 years 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) all with onset 01Jul2022, outcome "unknown" and all described as "After 1st booster she tested positive for COVID". The event "after 1st booster she tested positive for covid" required emergency room visit. The patient underwent the following laboratory tests and procedures: SARS-CoV-2 test: (01Jul2022) Positive, notes: 01Jul2022 She tested positive for COVID.  Clinical Course: Warm transfer withheld. He has a caller, and patient was calling about the Pfizer COVID-19 vaccine. She went to get the second booster shot and she mentioned she had already received the primary series and the first booster shot. The caller confirmed the details provided by the transfer agent.  Caller proceeds to provide the following information to MI agent regarding her desire to only get Pfizer brand. "Patient reported that she had the 3 COVID doses already, Pfizer. Moderna has different side effects. How long did she recover because she read that even though after having all the vaccines it can still contract the COVID. she wanted to continue with Pfizer, instead of taking Moderna and taking Johnson here, she did not want that. She just wanted it to be Pfizer because if she have side effects like what Pfizer gives to consumers, the side effects, so she know what to look for. Patient knew the side effects. And did not experience, from like Moderna, they have a different or talk about different side effects. With Johnson and Johnson one dose so she wanted to continue to receive the Pfizer as the 2nd booster dose if she really needs it.Patient has been traveling outside of the country a few times since COVID and she was going back to another country and she took a 3 weeks' vacation and came back the end of Jun2022 and got COVID on 01Jul2022 from traveling. She felt flu like symptoms. So, she went to some UC/ER in withheld and they tested her for COVID, and it was positive. patient did not take Paxlovid that was prescribed. she is going back for another trip till 10Oct for 12 days. Asking does she need second booster since she has COVID the first of Jul2022 and she had mild symptoms, and she was old and when she gets old immunity goes down and it was hectic coming back. Patient details was reported as Transcribed age and DOB as provided by transfer agent. Unable to clarify with caller. Caller said patient was a Registered Nurse and she retired 10 years ago. Asking is telephone number enough Address and email address are unknown. It was reported by the patient that she did not have diabetes and was not immunocompromised  The information on the batch/lot number for BNT162b2 has been requested and will be submitted if and when received.; Sender's Comments: Based on the information provided in that narrative lack of efficacy of the suspected vaccine cannot be completed excluded