GonoGen™ II is a monoclonal antibody-based colorimetric test intended for the confirmatory identification of Neisseria gonorrhoeae from culture.Infection with N. gonorrhoeae requires different treatment than infections with other Neisseria species. Infections with nonpathogenic Neisseria, such as N. flava, N. sicca or N. subflava, usually require no treatment, whereas infections with pathogens such as N. meningitidis may require different antibiotic therapy than that for N. gonorrhoeae. In order to differentiate N. gonorrhoeae from other Neisseria species, it is necessary to perform a confirmatory test. The sugar utilization test is the standard reference method, but it requires prolonged incubation and pure, viable isolates before unequivocal results can be obtained. The GonoGen II assay for the confirmation of N. gonorrhoeae is more rapid than sugar utilization tests and does not require pure or viable isolates.