soreness where they put it in/had soreness in the arm for one day when she got each of the injections; This is a spontaneous report from a contactable consumer. A 78-years-old female patient received bnt162b2 (Formulation: Solution for injection; Batch/Lot Number: EN6204), dose 2 intramuscular, administered in Arm Right on 05Mar2021 as dose 2, single for covid-19 immunisation (at the age of 78 years). Medical history included Low blood sugar from an unknown date and unknown if ongoing (diagnosed when she was 32). Concomitant medications included benzylpenicillin sodium (PENICILLINE) taken for tooth abscess from Jul2021 to an unspecified stop date; hydrastis canadensis (GOLDEN SEAL ROOT & RHIZOMETINCTURE) taken for infection, start and stop date were not reported. The patient previously received first dose of bnt162b2 on 27Jun2021 for covid-19 immunisation. On an unspecified date patient experienced soreness where they put it in/had soreness in the arm for one day when she got each of the injections. Received call from Reporter forPatient who had the Pfizer COVID vaccine, both doses. They went to check to see if she had antibodies today. She will be 80 next year. Caller later stated age at time of events was 78. She just found out today, she has no immunity and ants to know what she does. Patient then came on the line in the background and stated she wanted to report it in case there may be other people like her. Call recording notification provided. She did not have a complete address, phone or email for primary care provider. She provided patient's name as (Withheld) Patient reported some of the information for report herself and some information was reported by her daughter, who was on the call providing initial report information. She went and got checked to see if she had immunity. Reporter had gotten the Moderna vaccine on the same day and she had positive immunity, whereas patient had the Pfizer ones and had no immunity. At the time, she was having trouble with her teeth. She had two abscesses. She was taking an herb and it is Golden Seal Root. It kills viruses and bacteria. If she is taking something that kills viruses, would that kill antibodies. That is her question. The only problem with the Golden Seal Root is that it gives her diarrhea just like the antibiotics. Penicillin gave her diarrhea too. When she got the teeth out, she stopped taking Golden Seal Root and started taking Penicillin. She could not take both. She does not have a lot or expiration for the Golden Seal Root or the Penicillin. She has been having trouble with teeth and ear for months and was taking the Golden Seal Root for a while and was trying to prevent an infection in her blood. One tooth was bothering her sinuses and 1 tooth was bothering her ear. Now sinus and ear have cleared up once the teeth were pulled. The dentist did an emergency procedure to remove both abscessed teeth. She then wanted to see if she had antibodies. She had no side effect from the shot. She then said it was just like the flu shot. She just had soreness where they put it in and that is usual. She did not have the manufacturer, lot or expiration for the flu shot that she got a sore arm for. She had to go into another area to move her arm to circulate the medication after she got the Pfizer COVID vaccine. She only had soreness in the arm for one day when she got each of the injections and then it was gone. She was hoping she can get a third Pfizer shot. Her doctor and pharmacy say it is not authorized though. The patient underwent lab tests and procedures which included antibody test: negative on an unspecified date. The outcome of the events was recovered.  Follow-up attempts are completed. No further information is expected.