Fangzhouzi(Fangshimin）Twitter: --- By Google Translator

The preliminary results of the University of Southern California researchers spot-checking the blood of residents in the Los Angeles area came out. The blood of 4.1% of the test subjects contained antibodies against the new coronavirus. It is concluded that 2.8% -5.6% of the adults in Los Angeles have been infected with the new coronavirus, which is equivalent to 221,000 -442,000 people, 28-55 times the number of confirmed cases in Los Angeles at the beginning of April, with an estimated mortality rate of 0.14% -0.27%.