How scared should we be of the Omicron variant?

The Omicron variant is an unwelcome reminder that the pandemic is far from over. But just how much worse are things going to get – and will Plan B be enough to avoid a lockdown? The Medical Minefield team speak to Fiona Fox of Science Media Centre on why Omicron is a setback, rather than a return to square one, and to Professor Penny Ward, professor of pharmaceutical medicine at King's College London, who suggests that we should keep calm - and carry on boosting.

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