by Jing Xuan Teng, with Agence France Presse Bureaus BEIJING, China (AFP) — China shut down a city of 13 million people on Thursday in a bid to extinguish a tiny Covid-19 outbreak and chase its zero-case goal, as other nations around the globe battled huge infection surges driven by the Omicron variant. Early studies from South Africa and Britain gave some cause for hope, however, indicating Omicron infections appear to result in fewer […]