Since posting our previous podcast in which we detailed our concerns about vector-based vaccines – more specifically AstraZeneca – as the possible cause of thrombosis, more material has come to hand explaining why there are significant though rare side-effects, including death. These concerns have led to many countries restricting the use of the AstraZeneca vaccine, at least for certain age groups. They have taken this decision despite the European agency, EMA, standing by its continued unrestricted approval. The relevant materials include records of thrombosis cases, including the incidences of sinus vein thrombosis that are of special interest for us.