VTM ( Viral Transport Medium ) / UTM ( Universal Transport Medium ) UTM 페이스북으로 공유 트위터로 공유 카카오톡으로 보내기 VTM ( Viral Transport Medium ) or UTM ( Universal Transport Medium ) is our company's ATM (ASAN Transport Medium). These two products are different names for the same purpose. This is because UTM is trademarked. For collection, transport, preserve of Viruses, Chlaymydia, Mycoplasma and Ureaplasma for long-term frozen storage. The products below are classified according to the composition of the swab. ASAN Transport Medium ( I ): 1 EA of Flocked Nasopharyngeal Swab ASAN Transport Medium ( II ): 1 EA of Flocked Nasopharyngeal Swab + 1EA of Flocked Oropharyngeal Swab ​