The XBB variant of omicron, which has become prevalent in China, is causing 40 million infections a week. It will peak in late June, with 65 million cases a week, says Professor Zhong Nanshan.

The situation is less serious than last January, when after the sudden withdrawal of the Chinese government from the Covid Zero policy, there was an explosion of cases. If the 65 million weekly cases predicted by the end of June are reached, it will be about 9 million a day.