Received Oct 17, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| COVID19 | COVID19 (COVID19 (MODERNA)) | MODERNA | UNK | — | IM |
Very hot to the touch; Real discomfort raising the injected arm for about 3 days; Arm around the injection site was bright red; This spontaneous case was reported by a consumer and describes the occurrence of VACCINATION SITE WARMTH (Very hot to the touch), LIMB DISCOMFORT (Real discomfort raising the injected arm for about 3 days) and VACCINATION SITE ERYTHEMA (Arm around the injection site was bright red) in a female patient of an unknown age who received mRNA-1273.712 (SPIKEVAX 2024-2025 PFS) for COVID-19 prophylaxis. No Medical History information was reported. On 10-Oct-2024, the patient received dose of mRNA-1273.712 (SPIKEVAX 2024-2025 PFS) (Intramuscular use) 1 dosage form. In 2024, the patient experienced VACCINATION SITE WARMTH (Very hot to the touch), LIMB DISCOMFORT (Real discomfort raising the injected arm for about 3 days) and VACCINATION SITE ERYTHEMA (Arm around the injection site was bright red). In 2024, LIMB DISCOMFORT (Real discomfort raising the injected arm for about 3 days) had resolved. At the time of the report, VACCINATION SITE WARMTH (Very hot to the touch) and VACCINATION SITE ERYTHEMA (Arm around the injection site was bright red) outcome was unknown. Concomitant medication use information was not provided by reporter. The patient received all Covid vaccine shots, which were Moderna. The patient always had visible reactions to vaccine injections around the injection site. The last Covid vaccine shot, prior to the one last Friday, was administered exactly one year earlier, on Thursday, 10-Oct-2024. Following the 2024 vaccination, the arm around the injection site was bright red, very hot to the touch, and there was real discomfort raising the injected arm for about 3 days. (That immune response was not unusual. The patient had bright red and hot to the touch responses to vaccines for as long as remembered.). It was unknown if the patient experienced any additional symptoms/events. Treatment medication use information was not provided by reporter. This case was linked to MOD-2025-790215, MOD-2025-790158 (Patient Link). Most recent FOLLOW-UP information incorporated above includes: On 13-Oct-2025: Live follow up received that contains non-significant information includes reference numbers were added. On 13-Oct-2025: Live follow up received that contains non-significant information includes reference numbers were added.