Vancouver is Awesome: If you are 40 and over, should you or shouldn’t you get the AstraZeneca Covishield vaccine? Unlike the mRNA Pfizer BioNTech and Moderna vaccines, the AstraZeneca vaccine has been associated with the increased incidence of a very rare type of blood-clotting disorder known as VIPIT (vaccine-induced prothrombotic idiopathic thrombocytopenia). In B.C., the AstraZeneca vaccine is now being offered for those age 40 and over (just announced on Monday) as VIPIT seems to affect younger adults, particularly younger women.