Use of Chicken Serum in the Species and Type Identification of Neisseria. 2

Discussion and Summary. Highly specific and potent agglutinating sera for the various types of N. intracellularis and for N. gonorrhoeae were quickly and readily obtained from chickens following relatively large intravenous in jections of living organisms. Their employment in a rapid agglutination technic affords a dependable means of identification of the various Neisseria. This method does not require incubation at 37°C and storage in the icebox overnight. The reaction occurs at room temperature, is read immediately, and the agglutinated organisms form clumps which can be seen easily. It is possible that the employment of chicken sera in the species and type identification of Neisseria will provide a better means of exploring the antigenic and epidemiologic relationships of this group of microiirganisms.