Mainland Chinese indexes led losses as Asia-Pacific markets fell sharply on Monday following a sell-off on Wall Street on Friday. "It’s no surprise and it makes all sorts of logical sense that the market should be concerned about the Covid situation because that clearly is impacting economic activity. It’s impacting earnings potential for many parts of the market,” said Timothy Moe, chief Asia-Pacific equity strategist at Goldman Sachs. China has been struggling to contain its worst outbreak of the virus despite harsh lockdowns in its largest city, Shanghai. Over the weekend, capital Beijing, warned that the virus has been spreading undetected for about a week.