difficulty walking; lower limb paraesthesia, resolved after 5 days; lower limb pain, not yet resolved; lower back pain, not yet resolved; this is a spontaneous report received from a contactable reporter(s) (consumer or other non hcp) from the ra-web. regulatory number: it-minisal02-842966. a 53 year-old patient received bnt162b2 (comirnaty), intramuscular, administration date 16dec2021 (lot number: fk6304) as dose 2, single for covid-19 immunisation. the patient's relevant medical history and concomitant medications were not reported. vaccination history included: covid-19 vaccine (dose 1, manufacturer unknown), for covid-19 immunisation. the following information was reported: gait inability (hospitalization) with onset 01jan2022, outcome "recovering", described as "difficulty walking"; paraesthesia (hospitalization) with onset 01jan2022, outcome "recovered" (06jan2022), described as "lower limb paraesthesia, resolved after 5 days"; pain in extremity (hospitalization) with onset 01jan2022, outcome "not recovered", described as "lower limb pain, not yet resolved"; back pain (hospitalization) with onset 01jan2022, outcome "not recovered", described as "lower back pain, not yet resolved". no follow-up attempts are possible. no further information is expected