Constant Vertigo began within a few hours after Bivalent Booster/Felt like everything was constantly spinning around head; Constant Dizziness began within a few hours after Bivalent Booster; Muscle Stiffness after Bivalent Booster; In bed for 2 weeks after Bivalent Booster; Body Aches after Bivalent Booster; Fever greater than 100 F after Bivalent Booster; Headaches after Bivalent Booster; Constant Fatigue began within a few hours after Bivalent Booster; This spontaneous case was reported by a patient and describes the occurrence of VERTIGO (Constant Vertigo began within a few hours after Bivalent Booster/Felt like everything was constantly spinning around head), DIZZINESS (Constant Dizziness began within a few hours after Bivalent Booster), MUSCULOSKELETAL STIFFNESS (Muscle Stiffness after Bivalent Booster), BEDRIDDEN (In bed for 2 weeks after Bivalent Booster) and MYALGIA (Body Aches after Bivalent Booster) in a 60-year-old male patient who received mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (batch no. AS7144B) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No Medical History information was reported.    On 12-Sep-2022, the patient received fourth dose of mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (unknown route) 1 dosage form. On 12-Sep-2022, the patient experienced VERTIGO (Constant Vertigo began within a few hours after Bivalent Booster/Felt like everything was constantly spinning around head), DIZZINESS (Constant Dizziness began within a few hours after Bivalent Booster), MUSCULOSKELETAL STIFFNESS (Muscle Stiffness after Bivalent Booster), BEDRIDDEN (In bed for 2 weeks after Bivalent Booster), MYALGIA (Body Aches after Bivalent Booster), PYREXIA (Fever greater than 100 F after Bivalent Booster), HEADACHE (Headaches after Bivalent Booster) and FATIGUE (Constant Fatigue began within a few hours after Bivalent Booster). On 26-Sep-2022, VERTIGO (Constant Vertigo began within a few hours after Bivalent Booster/Felt like everything was constantly spinning around head), DIZZINESS (Constant Dizziness began within a few hours after Bivalent Booster), MUSCULOSKELETAL STIFFNESS (Muscle Stiffness after Bivalent Booster), BEDRIDDEN (In bed for 2 weeks after Bivalent Booster), MYALGIA (Body Aches after Bivalent Booster), PYREXIA (Fever greater than 100 F after Bivalent Booster), HEADACHE (Headaches after Bivalent Booster) and FATIGUE (Constant Fatigue began within a few hours after Bivalent Booster) had resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 12-Sep-2022, Body temperature: greater than 100 F.         No Concomitant medications were provided.  It was reported that patient received 3 Monovalent and 1 Bivalent Moderna COVID-19 vaccine. Patent received first dose of Moderna COVID-19 vaccine on 23 FEB 2021 with Lot 014M20A and Exp. Date as unknown. Patent received second dose of Moderna COVID-19 vaccine on 23 MAR 2021 with Lot 006B21A and Exp. Date as unknown. Patient received first Monovalent Booster dose of  Moderna COVID-19 vaccine on 03 NOV 2021 with Lot 033B21A and Exp. Date as unknown.   No treatment medications were provided.   This case was linked to MOD-2022-660540, MOD-2021-374714 (Patient Link).