Recent publications and case reports have raised concerns about potential adverse effects linked to COVID-19 mRNA vaccines. Studies highlight occurrences of neurological conditions such as Creutzfeldt-Jakob disease (CJD), with reports of 16 to 26 cases emerging shortly after vaccination. Research also points to serious adverse events including myocarditis, thrombosis, ischemic stroke, severe aplastic anemia, and autoimmune responses following mRNA vaccination. Investigations have detected circulating spike protein in patients with post-vaccine myocarditis and noted increased PD-L1 expression on immune cells after vaccination. Additionally, some studies suggest that mRNA from vaccines remains viable and continues producing spike protein up to 3.2 years post-injection. There are also concerns about possible transgenerational effects, with claims that mRNA crosses the placenta, potentially causing excess infant mortality years after vaccination. These findings are derived from various sources including the International Journal of Vaccine Theory, Practice, and Research, Minerva Medica, PubMed, SSRN, Circulation, and ScienceOpen.