@article {Johnston315, author = {N A Johnston}, title = {Evaluation of the coagglutination test for the identification of Neisseria gonorrhoeae in primary cultures.}, volume = {57}, number = {5}, pages = {315--319}, year = {1981}, doi = {10.1136/sti.57.5.315}, publisher = {The Medical Society for the Study of Venereal Disease}, abstract = {The coagglutination (COA) test for the identification of Neisseria gonorrhoeae was compared with immunofluorescence and sugar degradation tests on 1710 gonococcal isolates, 72 of which produce beta-lactamase. The COA test gave a positive result for 98.6\% of the strains. Treatment of suspensions with Streptomyces enzyme reduced the incidence of inconclusive results due to autoagglutination to 1.2\%. Cross-reactivity of the gonococcal antiserum was minimised by absorption with meningococci and Moraxella species. The COA provide a simple, quick, and reliable method for identifying N gonorrhoeae in culture.}, issn = {0007-134X}, URL = {https://sti.bmj.com/content/57/5/315}, eprint = {https://sti.bmj.com/content/57/5/315.full.pdf}, journal = {Sexually Transmitted Infections} }