On the basis of Tris-HCl buffers, EDTA and guanidine salts are

added, acting as the protein deformers and nuclease inhibitors,

making the virus inactive. But this does not affect the integrity of

the viral nucleic acid. This facilitates the extraction of nucleic

acid and analysis for the subsequent samples,which is safer during inspection and transitbut not suitable for isolated cultivation.

HX-K60-1: 10ml tube with 3ml VTM-N,one oral swab,one nasal swab,one biohazard specimen bag

HX-K60-2: 5ml tube with 2ml VTM-N,one oral swab,one nasal swab,one biohazard specimen bag

HX-K60-3: 5ml tube with 1ml VTM-N,one oral swab,one nasal swab,one biohazard specimen bag