AstraZeneca Second Doses vs Moderna and Pfizer COVID Vaccines


MedCram – Medical Lectures Explained CLEARLY

Roger Seheult, MD of MedCram discusses new AstraZeneca coronavirus vaccine data and compares second doses of the Oxford AZ vaccine with Pfizer and Modera vaccines.

View all Dr. Seheult’s videos at:

(This video is MedCram COVID-19 update 136 and was recorded on November 9, 2021)

Roger Seheult, MD is the co-founder and lead professor at He is Board Certified in Internal Medicine, Pulmonary Disease, Critical Care, and Sleep Medicine and an Associate Professor at the University of California, Riverside School of Medicine.


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