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The viral pneumonia in Wuhan City,China has spread around China.The virus has been proven to be a novel coronavirus (named as 2019-nCoV) by World Health Organization (WHO).2019-nCoV belongs to beta-coronavirus genera.On January 30,2020,WHO re-evaluated the potential effects of 2019-nCoV infection in global public health,and declared this epidemic as a Public Health Emergency of Intational Conc (PHEIC).