Evaluation of Modified Stuartʼs Medium in Culturettes@ for Transport of Neisseria gonorrhoeae

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Abstract
A prospective study compared rates of isolation of N. gonorrhoeae after immediate plating of clinical (human) specimens onto Thayer-Martin medium with isolation rates after initial transport in modified Stuart''s medium (MST) contained in Culturettes. Of 75 specimens positive for N. gonorrhoeae after immediate plating onto Thayer-Martin medium, 65 (87%) were also positive after being held in MST medium for .ltoreq. 8 h. Of 21 clinical specimens 20 (95%) remained positive after being held in MST medium for .ltoreq. 3 h. The rates of isolation of N. gonorrhoeae were significantly reduced after transport for 24 and 48 h; 60% and 27% of specimens, respectively, yielded N. gonorrhoeae-positive cultures after these intervals. Evidently, MST medium in Culturettes is an acceptable transport medium for specimens containing N. gonorrhoeae when transport time prior to inoculation of growth medium is .ltoreq. 3 h.

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