COVID-19 Vaccines (Pfizer-BioNTech & AstraZeneca) Trigger Multiple Sclerosis & Optic Neuritis Neurologists in Brazil affiliated with hospitals in both the States of Paraiba and Paraná present two case series involving demyelinating syndromes in previously asymptomatic patients. The triggering factor in both cases was vaccination against COVID-19 with mRNA vaccines. Published in the journal Neuroimmunology Reports, the first case involved a young female, 25 years old, previously asymptomatic, one week after the ChAdOx1 (AstraZeneca/Oxford) Vaccine developed right hemiparesis (weakness or inability to move on one side of the body). The attending specialists report that brain MRI and MRI of the spinal cord demonstrated multiple hyperintense lesions, acute and chronic. Meanwhile, a second case involved an 8-year-old Caucasian male; 12 days after the double dose of the BNT162b2 (Pfizer-BioNTech) vaccine, the patient complained of bilateral visual blurring. The patient was pulsed with methylprednisolone one g/day/5 days with complete recovery. The study’s authors raise awareness of rare but real serious side effects linked to COVID-19 countermeasures. Despite the low rates of neurological symptoms associated with traditional vaccines, mild to severe cases can occur. The Brazilian specialists herein report that in some rare cases, vaccines may trigger autoimmune https://www.trialsitenews.com/a/covid-19-vaccines-pfizer-biontech-astrazeneca-trigger-multiple-sclerosis-optic-neuritis-728b5186