Public Health  City of Wuhan Reopened for Business China’s central government, with much fanfare, lifted the more than two-month long lockdown on the city of more than 11 million yesterday. The reopening means that residents who show through a smartphone application a Quick Response (QR) code with the color green can resume daily activities outside of their homes and travel outside of Hubei Province. With more than 96 percent of China’s officially reported novel coronavirus (COVID-19) related fatalities occurring in Hubei, the province’s reintroduction into national life will be a major test of big data in monitoring and responding to new outbreaks.   In recent weeks, the CIA and other U.S. government age...