she has a slight fever today/feverish/she has the temperature of 98.5; had the original ones previously, the last booster end of Dec2022; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 73-year-old female patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 10Jan2023 as dose 6 (booster), single (Lot number: G56742) at the age of 73 years for covid-19 immunisation. The patient's relevant medical history included: "Anxiety" (unspecified if ongoing); "Blood pressure high" (unspecified if ongoing). The patient took concomitant medications. Vaccination history included: Covid-19 vaccine (DOSE 1; MANUFACTUERER UNKNOWN), for COVID-19 immunization; Covid-19 vaccine (DOSE 2; MANUFACTUERER UNKNOWN), for COVID-19 immunization; Covid-19 vaccine (DOSE 3 (BOOSTER); MANUFACTUERER UNKNOWN), for COVID-19 immunization; Covid-19 vaccine (DOSE 4 (BOOSTER); MANUFACTUERER UNKNOWN), for COVID-19 immunization; Bnt162b2 (DOSE 5 (BOOSTER), SINGLE), administration date: Dec2022, for COVID-19 immunization, reaction(s): "the last booster was last Dec, end of Dec of 2022/you know I had like 3 boosters of the regular shot". The following information was reported: INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION (non-serious) with onset 10Jan2023, outcome "unknown", described as "had the original ones previously, the last booster end of Dec2022"; PYREXIA (non-serious) with onset 16Jan2023, outcome "unknown", described as "she has a slight fever today/feverish/she has the temperature of 98.5". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were not taken as a result of pyrexia.  Additional information: Reporter had the Pfizer Covid 19 vaccine booster last 10Jan and she had a slight fever today. Asked if this was from the vaccine. Transferring agent stated, I had a patient on the other line. She was calling today about the Pfizer COVID-19 Vaccine. She received the Bivalent booster on 10Jan. She told hat as of today, she was feeling feverish. She told she had the temperature of 98.5 and she feels like she had a fever. I want you to know that she said she was a little short in time. So she will prefer the report was done quickly as possibly. Consumer stated, I am not going to provide the dose but I could tell you what they are for. It was for Blood pressure. I got a bunch of them. I do not know if I want to go through all of them right now. I had High Blood Pressure and I had Anxiety. Vaccination facility details was Doctors office. It had not been studied long enough to really know what the outcome was going to be from the vaccine, like other side effects or dangers, I heard strokes or some kind of thing with the heart can happen. was it kind of like a trial period still. Reporter mentioned she "had the Pfizer Covid 19 vaccine (bivalent) in 10Jan2023 and as of today and yesterday I had been feeling feverish, I take my temperature, normally was 97.6, but now its gone up to 98.5 and I feel like I had a fever. I was wondering if that was from the vaccine or not. Caller mentioned she had the original ones previously, the last booster was last Dec, end of Dec of 2022, but that wasn't the last booster from the previous, you know I had like 3 boosters of the regular shot, but this last booster I just got this Jan, I got it a week ago" Caller wanted to know if this could be caused by the vaccine, she called her doctor and he told her it would not happen so long after the vaccine It had not been studied long enough to really know what the outcome was going to be from the vaccine, like other side effects or dangers, I heard strokes or some kind of thing with the heart can happen.