Many in Europe vaccinated with two AstraZeneca and then two mRNA boosters. The second one Moderna. AZ and J and J have been seriously maligned too.
RT @EricTopol: After primary vax w/Pfizer or AZ, 1.5 million people matched, Moderna v Pfizer booster, during Delta/Omicron
Moderna booster was more effective than Pfizer for preventing infection & COVID-19 hospitalisation during the first 12 weeks after vaccination
https://www.medrxi…

🐦🔗: https://nitter.eu/NChildersMEP/status/1553654759785111552