This year started with the focus on Covid-19 vaccine rollouts and ends with the emergence of a new coronavirus variant, Omicron. Ros Atkins looks at how the pandemic has evolved in 2021 and the challenges that lie ahead.
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This year started with the focus on Covid-19 vaccine rollouts and ends with the emergence of a new coronavirus variant, Omicron. Ros Atkins looks at how the pandemic has evolved in 2021 and the challenges that lie ahead.