As I know you are aware, they were using CT scans in Wuhan when there were no tests. This is what accounted for the huge jump in cases mid month. The “official” method has been changed back now to “In the hospital and tested.” Clearly that dropped the count back down.
Whatever works to keep the counts down.
How do people get this information p to the healthcare workers, doctors, radiologists? Because I’d I were a doctor, I’d be doing chest CTs and absent a positive flu test, treating pneumonia like coronavirus.