Next Generation Pathogen Media+For research use and COVID 19 test kit manufactures following validation per FDA EUA test VTM guidance. TAG NGPM+ is designed to be used as virus inactivating transport media for research use only. TAG NGPM+ does not require refrigeration, and does not contain any Guanidinium salt, which could react with bleach and produce toxic gas. TAG NGPM+ is non denaturing, so it is more friendly towards down steam protein based assays compared to other protein