GRAM NEGATIVE DIPLOCOCCI
GENUS: NEISSERIA Characteristics: . They are nopn-motile, gram-negative intacellular diplococci
. Rapidly killed by drying, sunlight, heat, and disinfectants . Ferment carbohydrate produucing acid but not gas . Each cocci is kidney-shaped with adjacent concave sides . Grow best on complex media under aerobic conditions containing 5%co2 . Oxidase positive. . The main species of medical importance are:
Characteristics: An obligate parasite of the human urogenital tract.