N. gonorrhoeae: pathogenicity of colonial type 5.
نویسندگان
چکیده
منابع مشابه
A new colonial type of N. gonorrhoeae.
A new variant of Neisseria gonorrhoeae, designated Type 1(1), is described. Colonies of the new type resemble those of Types 1 and 2 in physical characteristics but are granular with a slightly crenated edge and are a deeper gold in colour. The virulence of Type 1(1) in the chick embryo is in keeping with that of Types 1 and 2 but is significantly different from Types 3, 4, and 5. Type 1(1) cou...
متن کاملNeisseria gonorrhoeae. II. Colonial variation and pathogenicity during 35 months in vitro.
During 35 months of selective in vitro cultivation, Neisseria gonorrhoeae cells retained their virulence for humans and were shown to be closely related to a particular colonial morphology. Saline-autoagglutinability was the only other characteristic distinguishing virulent from avirulent cells. Human responses to challenge with cells of the different colonial types were studied for their relat...
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Four principal colony types of gonococci have been previously described, and it has been shown that primary isolates from the urethra and cervix are primarily of colony types 1 and 2. In the present work, gonococcal isolates from the rectum were also shown to be predominantly colony types 1 and 2. Visualization and typing of gonococcal colonies in primary rectal isolates were facilitated by the...
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The effect of CO2 concentration on the growth and colonial stability of Type 1 Neisseria gonorrhoeae has been investigated. Carbon dioxide at a concentration of 16 per cent in air above flasks incubated in a shaker was effective in supporting growth and 100 per cent colonial stability of Types 1, 1', 2, and 4. Lower CO2 tensions increased the generation time of the strains and were less effecti...
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Routine methods for the isolation of Neisseria gonorrhoeae employ various complex media in conjunction with devices designed to supply an atmosphere of approximately 10 per cent carbon dioxide. Recent investigations7 of the CO2 requirement of N. gonorrhoeae have shown that various strains of this microorganism can be grown on a Casamino-salts-glucose agar medium in the absence of CO2, provided ...
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ژورنال
عنوان ژورنال: Journal of Clinical Pathology
سال: 1978
ISSN: 0021-9746
DOI: 10.1136/jcp.31.5.437