Autolysis Of The Gonococcus

The capsule of the gonococcus

16 strains of Neisseria gonorrhoeae were subjected to several established techniques for capsule demonstration by light microscopy. In all strains examined, encapsulation of the gonococcus was demonstrated. Although the capsules were somewhat more easily seen in strains recently isolated from clinical material, organisms that had been passaged for several years also were encapsulated as were al...

Surface structures of the gonococcus.

The Carbohydrates of Gonococcus and Meningococcus

The alcohol-insoluble polysaccharides of gonococcus and meningococcus were found to contain 4.2 and 3.7 per cent nitrogen respectively, to be protein-free by chemical test, to reduce FehIing-Benedict solution only after hydrolysis. They were non-toxic for rabbits and mice, and failed to engender antibodies (precipitins) in rabbits. They produced no cutaneous reactions in normal, snuffle-free ra...

Identification of the Gonococcus from Cultures and the Effect of Certain Animal Sera on the Fermentations of the Gonococcus.

The value of identification of suspicious organisms when cultures are employed in the diagnosis of gonorrhea is still being debated by many. Some believe that fermentation tests are essential; others consider them necessary only in doubtful cases. The latter consider the source of infection, the fact that colonies are oxydase-positive and consist of bean-shaped gram-negative diplococci as suffi...

Studies on Gonococcus Infection

The four colony types of several different strains of gonococci were isolated by selective transfers on agar. These colony variants differed in the degree of autoagglutination which occurred when they were grown in fluid medium. It was found that this clumping behavior was related to the colonial type, with type 2 isolates exhibiting the greatest autoagglutination followed by types 3, 1, and 4....