Why the Oxford vaccine is a global game changer

In the long dark tunnel that has been 2020, November stands out as the month that light appeared. Some might see it as a bright light, others as a faint light — but it is unmistakably a light.

On 9 November, Pfizer announced the interim results of its candidate vaccine, showing it to be “more than 90% effective” in preventing symptomatic COVID-19 in late-stage human trials. The news was greeted with joy.

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