The following video is brought to you courtesy of the Sky News YouTube Channel. Click the video below to watch it now.
Professor Jonathan Van-Tam answers your vaccine questions.
The Deputy Chief Medical Officer for England tells Sky News that revaccinating may be needed if variants ‘outwit’ us.
He also says the risk factors for how seriously ill people get with COVID is down to “age, age, and age – it’s the absolute driver and the biggest factor”.
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