Mexico now has the third most COVID-19 deaths in the world, behind the United States and Brazil, while former success story Vietnam is struggling to control an outbreak spreading in its most famous beach resort. China reported a more than 50% drop in newly confirmed cases in a possible sign that its latest major outbreak in the northwestern region of Xinjiang may have run its course. Mexican health officials on Friday reported 688 new deaths, pushing the country’s total to 46,688.