Virus Acting News Today

It there was a chinese study that looked at patients that had this disease and a certain number of people tested, sometimes the test was negative. this is complicated, right? i think for the person on the other end of it who is waiting for their test, it doesnt matter what the reason is why it came out to not be positive when they themselves had the disease. but the reasons for why a test could be potentially false negative, the idea that it it could be negative when there is disease there is mu...