He was in oximeter: before he was in 91 and this morning he was in 97; diagnosed with pneumonia - his lungs did not sound good; Could not breathe/He was not gasping for air, he noticed he could not breathe well; Started with a cough/dry cough/a horrible cough; Sore arm; He did not go to work; very upset; This spontaneous case was reported by a consumer and describes the occurrence of PNEUMONIA (diagnosed with pneumonia - his lungs did not sound good) in a 60-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 053E21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included COVID-19 on 05-Jul-2021.    On 23-Aug-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. In August 2021, the patient experienced IMPAIRED WORK ABILITY (He did not go to work) and MOOD ALTERED (very upset). On 24-Aug-2021, the patient experienced DYSPNOEA (Could not breathe/He was not gasping for air, he noticed he could not breathe well), COUGH (Started with a cough/dry cough/a horrible cough) and PAIN IN EXTREMITY (Sore arm). On 26-Aug-2021, the patient experienced PNEUMONIA (diagnosed with pneumonia - his lungs did not sound good) (seriousness criterion medically significant). On an unknown date, the patient experienced OXYGEN SATURATION DECREASED (He was in oximeter: before he was in 91 and this morning he was in 97). At the time of the report, PNEUMONIA (diagnosed with pneumonia - his lungs did not sound good), DYSPNOEA (Could not breathe/He was not gasping for air, he noticed he could not breathe well), OXYGEN SATURATION DECREASED (He was in oximeter: before he was in 91 and this morning he was in 97), PAIN IN EXTREMITY (Sore arm), IMPAIRED WORK ABILITY (He did not go to work) and MOOD ALTERED (very upset) outcome was unknown and COUGH (Started with a cough/dry cough/a horrible cough) was resolving.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On an unknown date, Oxygen saturation: decreased to 91 (Low) He has an oximeter and before he was in 91 and this morning he was in 97.     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown) was unknown.       Patient received first dose of vaccine and was fine that day. The next day patient had sore arm and that night patient woke up saying that he could not breath and he was not gasping the air. Patient was unable to go to work for couple of days. On 26 Aug 2021, patient took urgent care and was diagnosed with pneumonia because his lungs was not good. On the same night patient started coughing and was unable to breath well. Patient reported that it was a dry horrible cough. Patient is better now, but the cough was not recovered.  Treatment details included antibiotics, an inhaler and steroids after diagnosing pneumonia.  Concomitant medications were not reported.  Company Comment: This case concerns a 60-year-old male, with a history of COVID-19, developed a serious unexpected event of pneumonia, and non-serious dyspnoea, cough, oxygen saturation decreased, pain in extremity, impaired work ability, and mood altered. Event latency 2 days after first dose mRNA-1273. Events resolving. Based on current available information and temporal association between the use of the product and the start date of the event, a causal relationship cannot be excluded.; Sender's Comments: This case concerns a 60-year-old male, with a history of COVID-19, developed a serious unexpected event of pneumonia, and non-serious dyspnoea, cough, oxygen saturation decreased, pain in extremity, impaired work ability, and mood altered. Event latency 2 days after first dose mRNA-1273. Events resolving. Based on current available information and temporal association between the use of the product and the start date of the event, a causal relationship cannot be excluded.