fainting; this is a spontaneous report received from a contactable reporter(s) (physician) from the regulatory authority-web. regulatory number: gr-greof-20217597 (regulatory authority). a 26-year-old male patient received bnt162b2 (comirnaty), intramuscular (lot number: fd6840) as dose 1, single for covid-19 immunisation. the patient's relevant medical history and concomitant medications were not reported. the following information was reported: syncope (hospitalization) with onset 15jul2021, outcome "recovered" (15jul2021), described as "fainting". clinical course: free medical history, no allergies. no follow-up attempts are possible. no further information is expected