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10+ Astrazeneca Vaccine Mechanism PNG . The astrazeneca/oxford university vaccine has been a frontrunner in the race to find a coronavirus jab and has been shown to be 70.4% effective and possibly up to 90%. It uses a harmless cold virus common to chimpanzees as a transport mechanism. EU to extend COVID vaccine export controls as AstraZeneca ... from s.yimg.com As of this morning, we have a first look at the oxford/astrazeneca vaccine's efficacy in clinical trials via press releases from both organizations. The vaccines do this very well. Astrazeneca continues to engage with governments, multilateral organisations and collaborators around the world to ensure broad and equitable access to the vaccine at no profit for the duration of. It uses a harmless cold virus common to chimpanzees as a transport mechanism. .a successful vaccine and, if so, we will be ready to supply it, astraze...