RARE, DANGEROUS SIDE EFFECTS OF SOME COVID-19 VACCINES EXPLAINED

Summary from the TLDR newsletter

Vaccine-induced immune thrombocytopenia and thrombosis (VITT) occurred in roughly one out of 200,000 people who received adenovirus-based COVID-19 vaccines. The condition occurred due to PF4 antibodies binding to rogue antibodies, setting off a dangerous cascade (PF4 is a protein involved in blood clotting). Researchers hypothesize that patients who developed VITT had previously been infected with an adenovirus, which primed their B cells to recognize an adenovirus protein in the vaccine, which kicked those cells into action, starting a mutation-generating process that produced a variant with a negatively charged amino acid, which ultimately led to VITT. In most parts of the world, between 40% and 60% of the population has the genetic background that makes people more prone to VITT, but in East Asia, the prevalence is only 20%.