Abstract
MS patients were one of the first populations vaccinated in Iran. To date, the most used vaccine brand on Iranian MS patients is Sinopharm COVID-19 vaccine. Here is the first study on the adverse events after the first dose of Sinopharm vaccine on 583 Iranian MS patients. A Google form link was sent to MS patients through social networks, between May 1, 2021 and May 22, 2021. No serious adverse event was reported. At least one complaint (mostly transient) was reported by 350 (60%) of vaccine recipients. Constitutional symptoms (malaise, fatigue, fever, shivering, & generalized body pain) (51%) and headache (9%) were the most reported complaints. We found a relation between gender and prior infection with COVID-19 and reported symptoms (p value less than 0.05). Only five recipients (0.9%) reported MS relapse after vaccination. MS worsening was a minor incident related to fever.
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