serious pins and needles and constant pain in left arm and left leg; serious pins and needles and constant pain in left arm and left leg; this case was received via the ra (reference number: gb-mhra-adr 26611833) on 23-feb-2022 and was forwarded to moderna on 23-feb-2022. this regulatory authority case was reported by a consumer and describes the occurrence of paraesthesia (serious pins and needles and constant pain in left arm and left leg) and pain in extremity (serious pins and needles and constant pain in left arm and left leg) in a 40-year-old male patient who received mrna-1273 (moderna covid-19 vaccine) for covid-19 vaccination. no medical history information was reported. on 29-dec-2021, the patient received dose of mrna-1273 (moderna covid-19 vaccine) (unknown route) 1 dosage form. on 31-dec-2021, the patient experienced paraesthesia (serious pins and needles and constant pain in left arm and left leg) (seriousness criterion medically significant) and pain in extremity (serious pins and needles and constant pain in left arm and left leg) (seriousness criterion medically significant). at the time of the report, paraesthesia (serious pins and needles and constant pain in left arm and left leg) and pain in extremity (serious pins and needles and constant pain in left arm and left leg) had not resolved. no concomitant medication information was mentioned by reporter no treatment medication information was mentioned by reporter. serious pins and needles and constant pain in left arm and left leg reaction do you think this reaction occurred as a result of a mistake made in the administration of the vaccine.: yes company comment : this regulatory authority case concerns a 40 -year-old, male patient with no medical history reported, who experienced the unexpected serious events of paraesthesia, pain in extremity (seriousness criterion medically significant) which occurred 2 days after a dose of (dose number not specified) .the benefit-risk relationship of mrna-1273 is not affected by this report. the event were assessed as serious as per regulatory authority�s report .; sender's comments: this regulatory authority case concerns a 40 -year-old, male patient with no medical history reported, who experienced the unexpected serious events of paraesthesia, pain in extremity (seriousness criterion medically significant) which occurred 2 days after a dose of (dose number not specified) .the benefit-risk relationship of mrna-1273 is not affected by this report. the event were assessed as serious as per regulatory authority�s report