For preservation and transport of Neisseria species and other fastidious organisms, like, Haemophilus influenza, Neisseria gonorrhoeae, Shigella flexneri, Streptococcus pneumoniae etc. TRANSPORT SWABS W/ STUART TRANSPORT MEDIUM is used for transportation and preservation of Neisseria species and other fastidious organisms. This medium was designed by Stuart for Gonococci. It is a chemically defined, non-nutrient medium suitable for transportation and preservation, without allowing significant multiplication of microbes. Calcium chloride salts are added to control the permeability of the bacterial cell wall and thus prolong their survival. Less amount of Agar is added to make medium semi solid. Sodium thioglycollate suppresses oxidative changes and provides a reduced environment. Methylene blue acts as the redox indicator, the blue color indicates the presence of oxygen and it shows an adequate degree of anaerobiosis. Sterile swab allows the easy absorption of specimen.