Beijing: The true scale of COVID-19 infections in China is now “impossible” to track, the country’s top health body said Wednesday, as officials warned of a rapid spread in Beijing after the country abruptly dropped its zero-tolerance policy. China last week loosened restrictions for mass testing and quarantine after nearly three years of attempting to stamp out the virus, prompting officially reported infections to fall quickly from the all-time highs recorded last month. And with testing no longer required for much of the country, China’s National Health Commission on Wednesday admitted its numbers no longer reflected reality. “Many asymptomatic people...