horrible taste/ the food tasted like garbage; sick; he felt lousy; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the parent.  A 23 year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 23Nov2021 (Lot number: FH8030) at the age of 23 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Migraine", start date: 2011 (unspecified if ongoing), notes: started when he was 13 years old. The patient's concomitant medications were not reported. Vaccination history included: Bnt162b2 (DOSE 2, SINGLE, States dose #2 of Pfizer BioNTech Covid 19 vaccine on 12Apr2021 in his upper left arm at roughly 3:30pm. Caller does not have NDC or expiry to provide. lot EW0161.), administration date: 12Apr2021, when the patient was 22 years old, for COVID-19 immunization, reaction(s): "States dose #1 of Pfizer BioNTech Covid 19 vaccine on 27Mar2021/ States dose #2 of Pfizer BioNTech Covid 19 vaccine on 12Apr2021"; Bnt162b2 (DOSE 1, SINGLE, States dose #1 of Pfizer BioNTech Covid 19 vaccine on 27Mar2021 in his upper left arm at 3:30. Caller does not have NDC or expiry to provide. lot ER8737.), administration date: 27Mar2021, when the patient was 22 years old, for COVID-19 immunization. The following information was reported: TASTE DISORDER (non-serious) with onset Dec2021, outcome "not recovered", described as "horrible taste/ the food tasted like garbage"; ILLNESS (non-serious) with onset Dec2021, outcome "unknown", described as "sick"; MALAISE (non-serious) with onset Dec2021, outcome "unknown", described as "he felt lousy". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were not taken as a result of taste disorder.  Additional information: Agent relays the caller is calling to report on her 23 year old son, (Name withheld). Agent relays the callers son received his booster dose of the Pfizer BioNTech Covid 19 vaccine sometime in Nov2021, like the day before Thanksgiving but caller did not have exact date. Agent relays the caller is reporting that 2 weeks later her son has a horrible taste after eating and reports it tastes like garbage when he eats. Agent relays the caller is asking for more information and he provided what he has and the caller would like to report the AE. Agent relays the caller is reporting her son has been experiencing this since Nov2021, it has not disappeared. Agent relays the caller did some research online and read like 6 patients reported the same thing and she wanted more information and to file a report as it seems like this is a rare event of the booster to her. Caller states it's like a side effect of long haul Covid symptoms, that garbage tasting thing and it has not gone away. States her son has not been out of the house for 2 years other than to get the vaccine and to stress to that point she means literally, she is  immunocompromised with severe asthma. States he has not worked and is living at home and has nowhere, it's not like he got Covid between. States she made him get a PCR test maybe 3 weeks after his booster and it came back negative.   No follow-up attempts are possible. No further information is expected.