Quite so.
The data I got is that among the people who really got the virus, positive rate of the test is only 30% - 50%. So false negative rate is as high as 50-70%.
The news report (in Chinese):
The data I got is that among the people who really got the virus, positive rate of the test is only 30% - 50%. So false negative rate is as high as 50-70%.
The news report (in Chinese):