Daughter woke up this morning with a 99.4; She mentioned that she is also tired, has flushed cheeks, and just feels like crap/Felt so tired; Her temperature was 99.4*F. She mentioned that today is the 5th day that it has been going on/99.2*F to 99.4*F Fever/She had chills that evening and a 99.8 fever; Arm hurt; Chills; Just not feeling well/ Feels like crap; Uncomfortable/Feels like crap; She mentioned that she is also tired, has flushed cheeks, and just feels like crap/pink cheeks; This is a spontaneous report from a contactable consumer (patient's mother) reported for a patient (reporter's daughter). A 14-years-old female patient received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Batch/Lot number: unknown, Expiration date: unknown) via an unspecified route of administration, administered at an unspecified anatomical location on 14May2021 at 16:15 pm (age at vaccination was 14 years) as dose 1, single for COVID-19 immunization. The patient's medical history and concomitant medications were not reported. The patient received her 1st dose of the Pfizer COVID vaccine on Friday, last week at 16:15 pm. On 14May2021, the patient came down with a 99.2*F to 99.4*F fever, all the time, it started the evening of the shot since then and had been going on. She mentioned that after the patient got the shot, on the ride home, said she felt so tired right away, had flushed cheeks, and just felt like crap since then. That morning, her temperature was 99.4*F. The caller reported that the patient said she was really tired and her arm hurt when she got home. She had chills that evening and a 99.8 fever. The patient had chills and was just not feeling well. For days after the shot, she was tired and got a fever of 99.2-99.4 and was just not feeling well. She mentioned that today was the 5th day that it had been going on. The caller wanted to know if that was normal for children and if that would last a little longer in adolescents. She mentioned that all of them in their family got the Pfizer vaccine and just didn't feel well for a day but was fine the day after, their arms hurt, had a low grade fever that evening, and the next day it was gone. The caller stated for adults, symptoms usually start the next morning or during the night over several hours. On 19May2021, the patient woke up that morning with a 99.4 degree temperature, not feeling well, and was not herself. She woke up that morning, thought the fever would be gone, but it was still 99.4. She asked how long it would be and if that was what they saw with the adolescents, it seems a little long to her. The caller asked whether that was a little long or was that common in the trial. The caller clarified the family's experience with the COVID vaccine was like one day. The caller was not afraid, the patient was not dying or anything, she was still uncomfortable, her cheeks were pink and she felt like crap, but it was not an emergency. The caller stated she had never heard of anybody still not being well after so many days and was curious. The caller wanted to understand the research for adolescents, are their immune systems were more robust, whether it would take longer. She asked if lingering fevers that go away was a side effect specifically for adolescents. The caller asked whether she should order a PCR test for her and would she come back positive. She received the response stating that PCR test is considered a viral test. Referred to HCP for clarification. The case was reported as non-serious. The outcome of the event her temperature was 99.4*F. She mentioned that today is the 5th day that it has been going on/99.2*F to 99.4*F fever/she had chills that evening and a 99.8 fever and arm hurt was resolved on 15May2021. The outcome of the event daughter woke up this morning with a 99.4 was not resolved. The outcome of the other events was unknown  The lot/batch number is not available despite the follow-up attempts made. Follow-up attempts completed. No further information is expected.