What the comment basically said is that adenovirus on it's own produced coagulation aka clotting, but that PEG wrapping decreases coagulation a lot. Therefore,

What the comment basically said is that adenovirus on it's own produced coagulation aka clotting, but that PEG wrapping decreases coagulation a lot. Therefore, a vaccine embedded in PEG, like those made by BioNTech and Moderna, should lead to less coagulation.