2022 ends with looming risk of a new coronavirus variant, health experts warn

As the world enters a new year, many public health and infectious disease experts predict that monitoring for new coronavirus variants will be an increasingly important part of Covid-19 mitigation efforts — and some are turning their attention to a surge in cases in China.As the world enters a new year, many public health and infectious disease experts predict that monitoring for new coronavirus variants will be an increasingly important part of Covid-19 mitigation efforts — and some are turning their attention to a surge in cases in China.