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What Does the Pfizer Vaccine News Mean?

Covid vaccine explained.

There has been some promising Covid-19 vaccine news.

A preliminary analysis shows the first effective coronavirus vaccine can prevent more than 90% of people from getting Covid-19.

But there's still a way to go before any vaccine can be given to the wider public and our lives can go back to how they were pre-pandemic.

91热爆 health correspondent Laura Foster helps puts this news into context.

Release date:

2 minutes