With 100 days until the start of the Winter Olympics, Beijing is promising a "simple and safe" 2022 Games - although preparations are anything but simple as China readies to host thousands of athletes and personnel as it battles Covid-19 flare-ups.

Beijing will be the first city to stage both the Summer and Winter Games, but the 2022 event is shadowed by the coronavirus pandemic and calls from human rights groups for a boycott over China's treatment of Tibet, Uyghur Muslims and Hong Kong.

The Games will run...