Here I breakdown the components found in the viral vector vaccines made by Johnson & Johnson, AstraZeneca / Oxford.

If you missed the video on how viral vector vaccines work, please find on my page (these are different than the mRNA vaccines).


You will see in the video that these vaccines contain no human or animal proteins, but each company did use a cell line derived from HEK293 in order to amplify the amount of adenovirus needed for the vaccines.


Additionally, there has currently been no evidence across the tens of thousands of people in clinical trials that the described ingredients in these amounts can cause harm. As always, happy to hear comments / questions!

Cover Art by: Ananya Anmangandla