Europe's economy was just catching its breath from what had been the sharpest recession in modern history.A resurgence in coronavirus cases this month is a bitter blow that will likely turn what was meant to be a period of healing for the economy into a lean winter of job losses and bankruptcies.Bars, restaurants, airlines and myriad other businesses are getting hit with new restrictions as politicians desperately try to contain an increase in infection cases that is rapidly filling up hospitals.The height of the pandemic last spring had caused the economy of the 19 countries that use the euro to plunge by a massive 11.8% in the April-June quarter from the previous three-month period.