Neuropathy in her feet  (like pins and needles) and in her muscles from the waist down; Floppy ankles; she could not complete "stair climber" exercises up until a month ago; Can wiggle toes, but even though functioning they are numb; still suffering from long term effects (neuropathy); Caller stated her balance is off as well.; still feels exhausted.; Neck pain; Couldn't sleep; Headache; Chills; Fever; Muscle Achiness; This spontaneous case was reported by a patient and describes the occurrence of NEUROPATHY PERIPHERAL (still suffering from long term effects (neuropathy)) in a 77-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 015M20A and 011L20A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No Medical History information was reported.   On 20-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 17-Feb-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 17-Feb-2021, the patient experienced MYALGIA (Muscle Achiness). On 22-Mar-2021, the patient experienced NECK PAIN (Neck pain), INSOMNIA (Couldn't sleep), HEADACHE (Headache), CHILLS (Chills) and PYREXIA (Fever). On an unknown date, the patient experienced NEUROPATHY PERIPHERAL (still suffering from long term effects (neuropathy)) (seriousness criterion medically significant), BALANCE DISORDER (Caller stated her balance is off as well.), PARAESTHESIA (Neuropathy in her feet  (like pins and needles) and in her muscles from the waist down), HYPOTONIA (Floppy ankles), EXERCISE TOLERANCE DECREASED (she could not complete "stair climber" exercises up until a month ago), HYPOAESTHESIA (Can wiggle toes, but even though functioning they are numb) and FATIGUE (still feels exhausted.). On 25-Mar-2021, NECK PAIN (Neck pain), INSOMNIA (Couldn't sleep), HEADACHE (Headache), CHILLS (Chills) and PYREXIA (Fever) outcome was unknown. At the time of the report, NEUROPATHY PERIPHERAL (still suffering from long term effects (neuropathy)), BALANCE DISORDER (Caller stated her balance is off as well.), PARAESTHESIA (Neuropathy in her feet  (like pins and needles) and in her muscles from the waist down), HYPOTONIA (Floppy ankles), EXERCISE TOLERANCE DECREASED (she could not complete "stair climber" exercises up until a month ago), HYPOAESTHESIA (Can wiggle toes, but even though functioning they are numb), MYALGIA (Muscle Achiness) and FATIGUE (still feels exhausted.) outcome was unknown.        For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   No adverse events reported after first dose on 20 January 2021. No concomitant medications reported.  Patient reported she had a COVID test on 27 March 2021 but no results were provided. Patient reported elevated blood pressure and heart rate that persisted for weeks but has since resolved.  Patient reported an electrocardiogram was performed on an unknown date with a normal result.  No treatment information was provided by the reporter.  Very limited information regarding these events has been provided at this time. Further information has been requested.; Sender's Comments: Very limited information regarding these events has been provided at this time. Further information has been requested.