He was not able to walk; weakness in his legs; gave medication to help him breathe; Tested positive for Covid; This spontaneous case was reported by a patient and describes the occurrence of GAIT INABILITY (He was not able to walk), MUSCULAR WEAKNESS (weakness in his legs), COVID-19 (Tested positive for Covid) and DYSPNOEA (gave medication to help him breathe) in a 79-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 041CUA, 010M20A and 012L20A) for COVID-19 vaccination.     Concurrent medical conditions included COPD. Concomitant products included FLUTICASONE PROPIONATE, SALMETEROL XINAFOATE (ADVAIR) for an unknown indication.   On 07-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 03-Feb-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 27-Aug-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. In May 2022, the patient experienced COVID-19 (Tested positive for Covid). On an unknown date, the patient experienced GAIT INABILITY (He was not able to walk), MUSCULAR WEAKNESS (weakness in his legs) and DYSPNOEA (gave medication to help him breathe). The patient was treated with Physical therapy (Use a cane) for Gait inability and Physical therapy (Use a cane) for Muscular weakness. At the time of the report, GAIT INABILITY (He was not able to walk), MUSCULAR WEAKNESS (weakness in his legs), COVID-19 (Tested positive for Covid) and DYSPNOEA (gave medication to help him breathe) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In May 2022, SARS-CoV-2 test: positive (Positive) Positive.         Concomitant products include Nebulizer. The patient had COVID-19 symptoms in first week of May and was diagnosed with COVID on an unknown date. It was stated that since having COVID, he was not able to walk due to weakness in his legs and has to use a cane. Treatment medications included Pills by Pfizer (took 3 pills twice a day), Steroids and Antibiotics.  Company Comment: This spontaneous case concerns a 79 year-old male patient, with a relevant medical history of COPD, who experienced the unexpected, non-serious Adverse Event of Special Interest of COVID-19, and non-serious events Gait inability, Muscular weakness and Dyspnoea, which occurred unknown days after the third dose of mRNA-1273 vaccine administration. Patient stated that since having COVID-19, he was not able to walk due to weakness in his legs and has to use a cane. Treatment medications included pills made by Pfizer 3 pills twice a day, steroids and antibiotics. The ongoing COVID-19 pandemic and underlying history of COPD could be confounders for the event COVID-19 and Dyspnoea. The date of the initial COVID-19 diagnosis and Sars-CoV-2 test result were not provided. The benefit-risk relationship of mRNA-1273 vaccine is not affected by this report.; Sender's Comments: This spontaneous case concerns a 79 year-old male patient, with a relevant medical history of COPD, who experienced the unexpected, non-serious Adverse Event of Special Interest of COVID-19, and non-serious events Gait inability, Muscular weakness and Dyspnoea, which occurred unknown days after the third dose of mRNA-1273 vaccine administration. Patient stated that since having COVID-19, he was not able to walk due to weakness in his legs and has to use a cane. Treatment medications included pills made by Pfizer 3 pills twice a day, steroids and antibiotics. The ongoing COVID-19 pandemic and underlying history of COPD could be confounders for the event COVID-19 and Dyspnoea. The date of the initial COVID-19 diagnosis and Sars-CoV-2 test result were not provided. The benefit-risk relationship of mRNA-1273 vaccine is not affected by this report.