AstraZeneca pauses clinical trial of COVID-19 vaccine

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Work on A Corona Virus Vaccine being developed by AstraZeneca has been halted after someone taking part in clinical trials had an adverse reaction shot being developed with England's Oxford University is seen as a leading vaccine candidates. The U. S. Has pre ordered 300 million doses. AstraZeneca is stressing that illnesses do happen by chance during trials. It says it's working to review safety data as quickly as possible. Fox's Simon Owen in

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