The new coronavirus is highly infectious and belongs to the same coronavirus as SARS in 2003 and MERS in 2012, named “2019-nCoV”. The diagnosis can be confirmed by normal or reduced white blood cells, elevated CRP, detection of new coronavirus nucleic acid in the blood, and interstitial changes and infiltrative shadows on chest CT. There is no specific drug or vaccine available, so you need to protect yourself and go out less.