tested positive for COVID; tested positive for COVID; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  An 84-year-old female patient received BNT162b2 (BNT162B2), as dose 1, single (Batch/Lot number: unknown), as dose 2, single (Batch/Lot number: unknown) and on 27Sep2021 as dose 3 (booster), single (Batch/Lot number: unknown) at the age of 83 years for covid-19 immunisation. The patient's relevant medical history included: "hearing problem" (unspecified if ongoing), notes: has a history of a hearing problem; "high blood pressure" (unspecified if ongoing), notes: took her high blood pressure medication. Concomitant medication(s) included: COZAAR taken for hypertension. The following information was reported: DRUG INEFFECTIVE (medically significant), COVID-19 (medically significant) all with onset 28Apr2022, outcome "unknown" and all described as "tested positive for COVID". The patient underwent the following laboratory tests and procedures: SARS-CoV-2 test: (28Apr2022) Positive. Therapeutic measures were taken as a result of drug ineffective, covid-19.  Clinical Course: The patient on treatment with Paxlovid from 28Apr2022 and until 04May2022. She started with rebound symptoms today on 11May2022. The symptoms were a runny nose and sneezing. Caller stated that she doesn't think she's that sick, just a little disappointed that she has symptoms again. Her main inquiry was that if she could still be contagious to her husband. Updated Information included: Reporter address added. Patient Height and Weight added. RMH 'hearing problem and high blood pressure' added. Lab data 'COVID' added. Concomitant Drug 'Cozaar' added. On 28Apr2022 she tested positive for COVID immediately prescribed Paxlovid for her which she took. She first took the package the first night, and two more packages the following days. All symptoms disappeared and she felt great. She was slowly recovering and felt great. On 11May2022, this morning, she woke up, and shew as sneezing again with a runny nose. She was feeling fine but she thinks it is a rebound effect. Her daughter gets rebound migraines from her migraine medicine. She reported this rebound to the doctor, and she hopes it is mild. She is just going to stay at home for another week and go back to bed every day. Last dose of Paxlovid: 04May2022 in the morning. She was feeling full of energy and good the last four days. She thought the medicine was a miracle. It was wonderful. She had minor side effects including: On day 4 and 5 she had an upset stomach in the middle of night. She had a heartburn feeling. She was not throwing up. It was two days worth and disappeared. She took two Tums, and that helped. She also had a horrible metal taste in her mouth. She sucked on cough drops which helped. She got the Paxlovid at (withheld) pharmacy in (address). Which is near (withheld). A day and a half later she felt very wonderful after starting the medication. She was still tired so she slept and drank water. The last 4 days she felt super. She did house work and cooking. Then, this morning when she woke up she was disappointed. She only took her high blood pressure medication because of potential interactions. Her blood pressure medication is generic for Cozaar. She doesn't think that had anything to do with it. She understands the concept of medicine and how there can be a rebound effect. She is assuming she is no longer contagious though. The first treatment took care of that correct. She did want to add she had Pfizer two vaccines and a booster prior to this. The date of her last COVID vaccine was 27Sep2022. On, 11May2022, this morning, she woke up, and shew as sneezing again with a runny nose. She was feeling fine but she thinks it is a rebound effect. She did want to add she had Pfizer two vaccines and a booster prior to this. The date of her last COVID vaccine was 27Sep2022. Her daughter gets rebound migraines from her migraine medicine.  The information on the batch/lot number for BNT162b2 has been requested and will be submitted if and when received.