Feels like goin downhill since then/This patient stated she was in the hospital for 3 days immediately after receiving booster; This patient stated she was in the hospital for 3 days immediately after receiving her booster and since then she has had to use her walker more; This spontaneous case was reported by a consumer and describes the occurrence of CONDITION AGGRAVATED (Feels like goin downhill since then/This patient stated she was in the hospital for 3 days immediately after receiving booster) and GAIT DISTURBANCE (This patient stated she was in the hospital for 3 days immediately after receiving her booster and since then she has had to use her walker more) in an adult female patient who received mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) for COVID-19 prophylaxis.     The patient's past medical history included Dermatochalasis (Excessive amount of skin on upper eyelids) and Neck surgery (Surgery on neck). Concurrent medical conditions included Spasticity, Memory deficit (Poor memory), Stiffness (Legs stiff, leg tightness), Degenerative disc disease, Blindness, Numbness, Vision loss, Fatigue, Primary progressive multiple sclerosis, Cane user, Walker user and Heaviness in leg (Legs heavy like weights). Concomitant products included FAMPRIDINE (AMPYRA) for an unknown indication.    On an unknown date, the patient received dose of mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (unknown route) 1 dosage form. On an unknown date, the patient experienced CONDITION AGGRAVATED (Feels like goin downhill since then/This patient stated she was in the hospital for 3 days immediately after receiving booster) (seriousness criterion hospitalization) and GAIT DISTURBANCE (This patient stated she was in the hospital for 3 days immediately after receiving her booster and since then she has had to use her walker more) (seriousness criterion hospitalization). The patient was hospitalized for 3 days due to CONDITION AGGRAVATED and GAIT DISTURBANCE. At the time of the report, CONDITION AGGRAVATED (Feels like goin downhill since then/This patient stated she was in the hospital for 3 days immediately after receiving booster) and GAIT DISTURBANCE (This patient stated she was in the hospital for 3 days immediately after receiving her booster and since then she has had to use her walker more) outcome was unknown.            It was reported that patient uses electric scooter. Patient received Moderna Covid 19 vaccine as booster dose. This patient stated she was in the hospital for 3 days immediately after receiving her booster and since then she had to use her walker more. No treatment medication were provided.  Company comment: This is a spontaneous case concerning a female patient with relevant medical history of spasticity, stiffness, degenerative disc disease, multiple sclerosis, user of cane, walker and electric scooter, who experienced the unexpected serious (hospitalization) events of Condition aggravated and Gait disturbance. The events occurred on unknown day after a booster dose of mRNA-1273.222 vaccine. No information disclosed about diagnostic tests performed or treatments received. The medical history remains as confounders. At the time of the report, the outcome of the events was unknown. The benefit-risk relationship of mRNA-1273.222 vaccine is not affected by this report.; Sender's Comments: This is a spontaneous case concerning a female patient with relevant medical history of spasticity, stiffness, degenerative disc disease, multiple sclerosis, user of cane, walker and electric scooter, who experienced the unexpected serious (hospitalization) events of Condition aggravated and Gait disturbance. The events occurred on unknown day after a booster dose of mRNA-1273.222 vaccine. No information disclosed about diagnostic tests performed or treatments received. The medical history remains as confounders. At the time of the report, the outcome of the events was unknown. The benefit-risk relationship of mRNA-1273.222 vaccine is not affected by this report.