slight arm pain would happen within the 24 hour period, but the pain was really intense/excruciating pain; There’s just a slight discomfort when I lift my arm a certain way; I couldn’t move my arm; Arm redness; The arm had a big blotch of red, about 4 to 5 inches in length and about 2 inches in width, and the pain lasted for a week and a half; muscle pain; This spontaneous case was reported by a patient and describes the occurrence of PAIN IN EXTREMITY (slight arm pain would happen within the 24 hour period, but the pain was really intense/excruciating pain), LIMB DISCOMFORT (There’s just a slight discomfort when I lift my arm a certain way), HYPOKINESIA (I couldn’t move my arm), ERYTHEMA (Arm redness) and RASH MACULAR (The arm had a big blotch of red, about 4 to 5 inches in length and about 2 inches in width, and the pain lasted for a week and a half) in a female patient of an unknown age who received mRNA-1273.712 (SPIKEVAX 2024-2025 PFS) (batch no. 8080803) for COVID-19 prophylaxis. The occurrence of additional non-serious events is detailed below. The patient’s past medical history included COVID-19 in July 2024 and Muscle pain. Previously administered products included for Product used for unknown indication: COVID-19 Vaccine (Patient received 6 shots since 2019) in September 2023; for Muscle pain: Lipitor. Past adverse reactions to the above products included No adverse effect with COVID-19 Vaccine and Lipitor. On 05-Jan-2025, the patient received seventh dose of mRNA-1273.712 (SPIKEVAX 2024-2025 PFS) (Intramuscular use) .5 milliliter. On 05-Jan-2025, after starting mRNA-1273.712 (SPIKEVAX 2024-2025 PFS), the patient experienced PAIN IN EXTREMITY (slight arm pain would happen within the 24 hour period, but the pain was really intense/excruciating pain). In January 2025, the patient experienced LIMB DISCOMFORT (There’s just a slight discomfort when I lift my arm a certain way), HYPOKINESIA (I couldn’t move my arm), ERYTHEMA (Arm redness), RASH MACULAR (The arm had a big blotch of red, about 4 to 5 inches in length and about 2 inches in width, and the pain lasted for a week and a half) and MYALGIA (muscle pain). In January 2025, ERYTHEMA (Arm redness) and RASH MACULAR (The arm had a big blotch of red, about 4 to 5 inches in length and about 2 inches in width, and the pain lasted for a week and a half) had resolved. At the time of the report, PAIN IN EXTREMITY (slight arm pain would happen within the 24 hour period, but the pain was really intense/excruciating pain) outcome was unknown, LIMB DISCOMFORT (There’s just a slight discomfort when I lift my arm a certain way) and MYALGIA (muscle pain) had not resolved and HYPOKINESIA (I couldn’t move my arm) was resolving. For mRNA-1273.712 (SPIKEVAX 2024-2025 PFS) (Intramuscular use), the reporter did not provide any causality assessments. No concomitant medication was reported. Patient had slight arm pain would happen within the 24 hour period, but the pain was really intense. The arm had a big blotch of red, about 4 to 5 inches in length and about 2 inches in width, and the pain lasted for a week and a half. Patient couldn’t move her arm. When lifted it, had excruciating pain. Normally when patient get the shot, move her arm around. Patient didn’t have anything like that with the other 6 shots that received since 2019. And the redness got worse within the weeks’ time. Then it started going down and patient could move the arm little bit. Patient still have a little bit of more like muscle pain. It wasn’t like the injection pain. It was a muscle pain. It was the same kind of pain patient experienced when she was on Lipitor and they increased dosage, the muscle pain, that kind of pain. There’s just a slight discomfort when patient lift up the arm a certain way, but the redness was gone. No treatment information was reported. This case was linked to US-MODERNATX, INC.-MOD-2025-781695 (E2B Linked Report).; Sender’s Comments: US-MODERNATX, INC.-MOD-2025-781695:male case