Identification of pathogens mainly includes virus isolation and viral nucleic acid detection. According to the traditional Koch’s postulates, virus isolation is the “gold standard” for virus diagnosis in the laboratory. First, viral culture is a prerequisite for diagnosing viral infections. A variety of specimens (such as swabs, nasal swabs, nasopharynx or trachea extracts, sputum or lung tissue, blood and feces) should be retained for testing in a timely manner, which gives a higher rate of positive detection of lower respiratory tract specimens. Then, immunological methods – including immunofluorescence assay, protein microarray, direct fluorescent antibody assay, MAb-based rapid NP (nucleocapsid protein) detection, semiconductor quantum dots, and the microneutralization test – which measure binding between the antigen from the whole virus or protein of the coronavirus and corresponding antibody, are easy to operate rapidly but have a lower sensitivity and specificity [3,4]. In addition, other immunological methods, including microneutralization ppNT assay (pseudo-particle neutralization) are highly sensitive and specific by using the gene coding for the coronavirus spike protein [5,6]. In the case of 2019-nCoV, viral research institutions can conduct preliminary identification of the virus through the classical Koch’s Postulates or observing its morphology through an electron microscopy [7]. Serology could also be used to identify the virus when 2019-nCoV-associated antigens and monoclonal antibodies are developed in the future [[7], [8], [9]]. All the examples above are traditional virus detection methods.