China's Covid zero target gets more elusive as asymptomatic cases increase

China reported more infections in people who exhibited no symptoms of Covid-19 on Tuesday than in those who were actively suffering from the virus, indicating the challenge it faces in eliminating the highly infectious and insidious pathogen.

Among the 89 people who learned they were harboring the virus, 46 had no outward signs of disease. It is the first time those with covert infections outnumbered those with symptoms during the broadest outbreak that China has experienced since the virus first emerged in Wuhan in late 2019. 

Of the 31 provinces on the Chinese mainland, 20 have reported infections caused by the delta