unconsciousness; she was physically weakened for 3 weeks; this is a spontaneous report received from a contactable reporter(s) (consumer or other non hcp) from the regulatory authority. a 16 year-old female patient received bnt162b2 (comirnaty), administration date 24sep2021 (lot number: ff2832) as dose 2, single for covid-19 immunisation. relevant medical history included: "hay fever" (unspecified if ongoing). the patient's concomitant medications were not reported. vaccination history included: covid-19 vaccine (dose 1, manufacturer unknown), for covid-19 immunisation. the following information was reported: loss of consciousness (medically significant) with onset 25sep2021, outcome "recovered", described as "unconsciousness"; asthenia (non-serious) with onset 25sep2021, outcome "recovered" (oct2021), described as "she was physically weakened for 3 weeks". no follow-up attempts are possible. no further information is expected