Stocks stumble on fears of second wave of coronavirus cases

LONDON (Reuters) - Stock markets gave up their early gains on Monday after reports of a pick-up in new coronavirus cases that threatens to slow or reverse the loosening of lockdown measures.Shares had initially gained, led by Asia, where markets cheered further loosening of coronavirus restrictions in the region - New Zealand will ease some curbs from Thursday, and Japan plans to end a state of emergency for areas where infections have stabilised.In Europe, millions in France are set to..