Thayer-Martin Selective Medium for the Cultivation of Neisseria Meningitidis from the Nasopharynx

Abstract
A medium is described which permits cultivation of N. meningitidis while selectively inhibiting most organisms constituting the normal flora of the nasopharynx, especially the saprophytic Neisseria. The use of Thayer-Martin selective medium in this study in-creased the detection of meningococcal carriers by 50 per cent and allowed direct typing from the primary isolation plates.

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