Novel coronavirus infection can be diagnosed with the aid of laboratory tests. Early in the course of the disease, peripheral blood leukocyte counts are normal or reduced, lymphocyte counts are reduced, and some patients present with increased liver enzymes, myokines, and myoglobin. The diagnosis of novel coronavirus infection can be confirmed if the patient’s respiratory specimen or blood specimen is positive for novel coronavirus nucleic acid by real-time fluorescence RT-PCR, or if the respiratory specimen or blood specimen disease is sequenced for virulence genes and found to be highly homologous to a known novel coronavirus.