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Ground-breaking study reveals how COVID-19 vaccines prevent …
Oxford vaccine reaches one billion doses released
Oxford vaccine: How did they make it so quickly? - BBC News
Ground-breaking research revealed in new video — Oxford Vaccine …
Oxford vaccine saved most lives in its first year of rollout
The Oxford/AstraZeneca (ChAdOx1-S [recombinant] vaccine) …
How the Oxford-AstraZeneca Vaccine Works - The New York Times
Covid vaccine: US trial of AstraZeneca jab confirms safety
Latest results put Oxford–AstraZeneca COVID vaccine back on track
Phase 3 Safety and Efficacy of AZD1222 (ChAdOx1 nCoV-19) Covid-19 Vaccine