Received Oct 7, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| COVID19 | COVID19 (COVID19 (MODERNA)) | MODERNA | UNK | — | IM |
The last vaccine has been great, very little side effects afterwards except a little redness for a day or 2 and then it is nothing so it is a wonderful vaccine; This spontaneous case was reported by a consumer and describes the occurrence of VACCINATION SITE ERYTHEMA (The last vaccine has been great, very little side effects afterwards except a little redness for a day or 2 and then it is nothing so it is a wonderful vaccine) in a 75-year-old male patient who received mRNA-1273.712 (SPIKEVAX 2024-2025 PFS) for COVID-19 prophylaxis. The patient's past medical history included Hypothyroidism and Heart valve replacement (2 mechanical heart valves). On 06-Jun-2025, the patient received dose of mRNA-1273.712 (SPIKEVAX 2024-2025 PFS) (Intramuscular use) 1 dosage form. In June 2025, the patient experienced VACCINATION SITE ERYTHEMA (The last vaccine has been great, very little side effects afterwards except a little redness for a day or 2 and then it is nothing so it is a wonderful vaccine). In June 2025, VACCINATION SITE ERYTHEMA (The last vaccine has been great, very little side effects afterwards except a little redness for a day or 2 and then it is nothing so it is a wonderful vaccine) had resolved. Concomitant medication use information was not provided by reporter. The patient did not receive any vaccine 4 weeks prior to the Spikevax vaccine. The reporter clarified that it was right at the injection site, with no pain or anything else. It was basically the size of a dime. It was not like the whole arm got red or it was too much; it was just red about the size of a dime around the injection site. The redness resolved in a day. The patient got it on a Thursday, and it was gone by Saturday. It was confirmed that this occurred after receiving Spikevax in June. It was reported that it was not uncommon for him, he never had a problem with Moderna vaccine or Pfizer vaccine. 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-2025-789840 (Patient Link).
Medical History/Concurrent Conditions: Heart valve replacement (2 mechanical heart valves); Hypothyroidism