Moyamoya disease is a known adverse event associated with COVID-19 vaccines.[1]
History
Pfizer identified Moyamoya disease as an adverse event of special interest to the Pfizer-BioNTech COVID-19 vaccine in their post-marketing surveillance report as of February 28, 2021.[1:1]
On July 7, 2023, mixed martial artist Josiah Harrell was diagnosed with Moyamoya disease shortly before his scheduled debut in the Ultimate Fighting Championship (UFC).[2]
5.3.6 Cumulative Analysis of Post-authorization Adverse Event Reports (p. 35). (2021). Public Health and Medical Professionals for Transparency; Pfizer. https://web.archive.org/web/20230714210336/https://phmpt.org/wp-content/uploads/2021/11/5.3.6-postmarketing-experience.pdf ↩︎ ↩︎
Duncan, K. (2023, July 22). UFC Fighter’s Debut Called Off Due To Rare Brain Disease. The Spun: What’s Trending in the Sports World Today. https://web.archive.org/web/20230713143026/https://thespun.com/more/mma/ufc-fighters-debut-called-off-due-to-rare-brain-disease ↩︎
