Psoriatic arthritis flare up; Feeling tired; This spontaneous case was reported by a consumer and describes the occurrence of PSORIATIC ARTHROPATHY (Psoriatic arthritis flare up) in an adult female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.    Co-suspect product included non-company product ADALIMUMAB (HUMIRA) for Psoriatic arthritis.    No Medical History information was reported.   On an unknown date, the patient received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form and ADALIMUMAB (HUMIRA) (Subcutaneous) at an unspecified dose. On an unknown date, the patient experienced PSORIATIC ARTHROPATHY (Psoriatic arthritis flare up) (seriousness criterion medically significant) and FATIGUE (Feeling tired). At the time of the report, PSORIATIC ARTHROPATHY (Psoriatic arthritis flare up) and FATIGUE (Feeling tired) had not resolved.            No concomitant medication provided. No treatment information mentioned.  On an unknown date, patient felt tired and experienced an arthritis flare up. COVID vaccine was considered a suspect as well.  This case was identified as part of a retrospective clean-up activity where certain emails received in the Moderna mailbox were missed to be booked-in  Company comment  This spontaneous case reported by a consumer, concerns a female patient of unknown age, with no relevant medical history reported, who experienced the unexpected, serious, medically significant event of PSORIATIC ARTHROPATHY (Psoriatic arthritis flare up) unknown days after receiving the 3 dose of mRNA-1273 vaccine in the covid 19 vaccination series, along with a non serious event of fatigue.. On an unknown date, patient felt tired and experienced an arthritis flare up. It was reported that patient also took Adalimumab for Psoriatic Arthropathy, which could be considered as a confounder for the flare up. No further clinical information on other comorbidities, risk factors, symptoms, labs, diagnostics, concomitant medications and treatment details were available in the report. The outcome of the event was reported as not resolved. The benefit-risk relationship of mRNA- 1273 vaccine is not affected by this report.; Sender's Comments: This spontaneous case reported by a consumer, concerns a female patient of unknown age, with no relevant medical history reported, who experienced the unexpected, serious, medically significant event of PSORIATIC ARTHROPATHY (Psoriatic arthritis flare up) unknown days after receiving the 3 dose of mRNA-1273 vaccine in the covid 19 vaccination series, along with a non serious event of fatigue.. On an unknown date, patient felt tired and experienced an arthritis flare up. It was reported that patient also took Adalimumab for Psoriatic Arthropathy, which could be considered as a confounder for the flare up. No further clinical information on other comorbidities, risk factors, symptoms, labs, diagnostics, concomitant medications and treatment details were available in the report. The outcome of the event was reported as not resolved. The benefit-risk relationship of mRNA- 1273 vaccine is not affected by this report.