Patient was shaking; Patient believed patient had COVID on March 2022, somnolence, myalgia, arthralgia, headache, chills and pyrexia; This spontaneous case was reported by a patient and describes the occurrence of TREMOR (Patient was shaking) and SUSPECTED COVID-19 (Patient believed patient had COVID on March 2022, somnolence, myalgia, arthralgia, headache, chills and pyrexia) in a 70-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination.     Patient did not receive other vaccine within 1 month prior to Moderna COVID-19 vaccine.  Concurrent medical conditions included Nickel sensitivity and Gluten intolerance.   On an unknown date, the patient received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On an unknown date, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form and first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. In March 2022, the patient experienced SUSPECTED COVID-19 (Patient believed patient had COVID on March 2022, somnolence, myalgia, arthralgia, headache, chills and pyrexia). On an unknown date, the patient experienced TREMOR (Patient was shaking). At the time of the report, TREMOR (Patient was shaking) and SUSPECTED COVID-19 (Patient believed patient had COVID on March 2022, somnolence, myalgia, arthralgia, headache, chills and pyrexia) outcome was unknown.            No concomitant medications information was reported.  Patient had received the first 2 Moderna COVID-19 vaccines and a booster, patient experienced side effects after the second and more intensely after the booster and was asking if the company recommend to receive the 2nd booster since patient's doctor didn't seem to be really positive because of the strong reaction after the booster.  Patient was asking about the super immunity, people who after receiving the vaccine and having COVID-19 seemed to have double immunity. Patient was confused about the dosage of the vaccines and asked if the 2nd dose was half a dose and if Moderna had any shot that was half the booster.  Patient didn't get tested but believed that patient had COVID on March 2022.  Patient experienced Muscle aches, joint aches, very bad headache fever, patient was shaking, patient had chills and was sleeping all the time, symptoms were very intense for 24 hours.  Company comment: This spontaneous case concerns a 70-year-old male patient with no relevant medical history reported, who experienced the unexpected non-serious adverse events of special interest, Suspected COVID-19 which occurred on unspecified day in March 2022 after a dose of mRNA-1273 vaccine (dose number not specified). The patient had received primary series of mRNA1273 vaccine, and a booster dose of which vaccination dates are not provided.  Ongoing Covid 19 pandemic could be considered as confounder to the event. The benefit-risk relationship of mRNA-1273 Vaccine is not affected by this report. Event seriousness assessed as per medical judgement. Patient took own medicine as treatment.   This case was linked to MOD-2022-584215 (Patient Link).; Sender's Comments: This spontaneous case concerns a 70-year-old male patient with no relevant medical history reported, who experienced the unexpected non-serious adverse events of special interest, Suspected COVID-19 which occurred on unspecified day in March 2022 after a dose of mRNA-1273 vaccine (dose number not specified). The patient had received primary series of mRNA1273 vaccine, and a booster dose of which vaccination dates are not provided.  Ongoing Covid 19 pandemic could be considered as confounder to the event. The benefit-risk relationship of mRNA-1273 Vaccine is not affected by this report. Event seriousness assessed as per medical judgement.