MB and bacterial infectious disease: There are additional laboratory analyzes for the COVID-19 infection, such as renal and liver function test, blood gas examination with the increased level of lactic acid used for screening the cases with high-risk of oxygenation disorder, erythrocyte sedimentation rate (ESR), myocardial enzyme, myoglobin, Procalcitonin (PCT) for distinguishing bacterial infection in the lung, coagulation image, D-dimer, inflammatory factors, urine routine test, and anti-acid staining [66].