Norgen's Stool Nucleic Acid Collection and Preservation System is a complete system for collection, ambient storage and transport of nucleic acids from stool specimens. Each of the 50 clamshells contain: nitrile gloves, alcohol swabs, Fe-Col Collection Paper, and Norgen's Stool Nucleic Acid Collection and Preservation Tube containing Norgen's Stool Preservative in a liquid format. The Stool Preservative eliminates the need to immediately process or freeze samples, allowing the samples to be shipped at ambient temperatures. The Stool Preservative allow samples to be stored at room temperature for over 2 years for DNA and up to 7 days for RNA. To extend the stool RNA stability in the preservative, storage at -20°C or -70°C is recommended upon arrival. Gram-negative and Gram-positive bacteria and fungi growth is halted, and viruses are inactivated allowing the resulting non-infectious samples to be handled and shipped safely.