A man wearing a mask walking as traffic is seen from an overpass during evening rush hour in Beijing. - AFP
Paris (AFP): No new variants of Covid-19 emerged in Beijing in the weeks after China ended its zero-Covid policy late last year, a new study said on Wednesday.
China saw an explosion of infections after starting to lift its strict pandemic measures from early December, sparking fears the world's most populous country could become a fertile breeding ground for new, more transmissible or severe strains.
