Diplococcus Intracellularis Meningitidis is a non-motile, non-liquefying, optionally anaerobic coccus, found usually in pairs, but may occur in short chains.

Is found within the protoplasm of the leukocytes.

Stains

Ordinary ones and Gram's.

Culture

Grows best at 370 C, but is not easily cultivated. Will develop on agar-agar, glycerin-agar, and in Loeffler's blood-serum. Growth is not characteristic; occurs as minute round grayish colonies that may coalesce. Requires frequent transplanting.