Professor Greinacher has been in the forefront of the race to understand the adverse effects of the A-Z vaccine.
Here is a simple explanation, and the second step, due to EDTA (ethylene diamine tetraacetic acid) is one I had not heard before. Note that EDTA is used in some chelation procedures, and alone has not been linked to clotting–in fact, it is a blood thinner. But in the process described below, it may indirectly promote clotting.
German scientists have found the exact 2 step process how the AstraZeneca COVID-19 vaccine causes blood clots in recipients. They describe a series of events that has to happen in the body before the vaccines create these large clots.
Scientists in Germany say they’ve worked out the two-step mechanism by which the AstraZeneca vaccine causes rare but devastating blood clots that gobble up the body’s supply of platelets.
“This is, in my opinion, rock-solid evidence,” said Andreas Greinacher, MD, head of the Institute of Immunology and Transfusion Medicine, University Hospital Greifswald, Germany, who was among the first scientists in the world to link the rare clots to antibodies against a key protein in platelets.
“This is what scientists usually think is confirmatory evidence,” he said in a call with reporters hours after publishing his study (read below) as a preprint ahead of peer review on the Research Square server.
Greinacher said that he believes the mechanism linking the vaccine with the rare clotting reactions is likely to apply to other vaccines that also use adenoviruses to ferry instructions for making the virus’s spike protein into cells. In his new study, Greinacher and colleagues describe a series of events that has to happen in the body before the vaccines create these large clots.
He explained that while everyone has the basic immune machinery that leads to the unusual clots, it is almost always kept in balance. The body uses a series of checks to prevent any step in the process from getting out of control.