Goethe University Frankfurt followed 29 healthy adults with 85 brain MRIs and found no new white matter lesions or qT1 signs of microstructural brain change after mRNA COVID vaccination.
Small shifts stayed within scan noise.
www.nature.com/articles/s41...
Scientific Reports - Does mRNA-based COVID-19 vaccination in the subacute phase lead to microstructural brain changes? A prospective pilot MRI study using T1 relaxometry