Rolf Marschalek, a professor at Goethe University in Frankfurt, Germany, claims he's identified the cause of rare blood clots linked to the COVID-19 vaccines developed by Johnson & Johnson and the University of Oxford and AstraZeneca. Subsequently, he also believes he's found a way for the producers to modify their shots so the clots no longer occur, the Financial Times reports.
Marschalek said his research zeroed in on the vaccines' adenovirus vectors, which "send the spike protein into the cell nucleus rather than the cytosol fluid inside the cell where the virus normally produces proteins." (The Pfizer-BioNTech and Moderna vaccines, on the other hand, don't enter the nucleus.) The theory is that once the spike protein enters the nucleus, some parts splice and create mutant versions, FT reports. Hypothetically, those mutant proteins are then "secreted by cells into the body" where they may trigger potentially fatal blood clots.
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