- Declining infection rate provides challenge for Oxford coronavirus vaccineYahoo News
- Coronavirus: Oxford scientists warn about vaccine trial success – Business InsiderBusiness Insider
- Oxford University Vaccine Trials Run Into HurdleBloomberg
- Coronavirus: AstraZeneca boss confident Covid-19 vaccine can succeedYahoo News
- Oxford Professor Lowers Coronavirus Vaccine’s Odds of Meeting September DeadlineMotley Fool
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