The discovery of the coronavirus vaccine is going on continuously, but at the same time a number of shocking reports are coming out about it. Now a new report has come out in the case of this pandemic, which claims that people can be infected even if the corona virus report is negative. An 80-year-old patient had symptoms similar to the corona, after which doctors tested her corona, but the report came back negative. After this, the doctors tested his corona test not once but thrice, to find out whether he was infected with the corona virus or not, but each time the report of that patient came negative. However, the symptoms of corona were clearly visible to the doctors. But for more information about why this happens, Know from an expert. Watch this video for more information.