| Neisser-Wechsberg l. |
a leukocidin produced by staphylococci that destroys rabbit but not human leukocytes; it is identical with alpha hemolysin.
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| Neisser-Wechsberg p. |
complement deviation.
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| Neisser-Wechsberg phenomenon |
see complement deviation, under deviation.
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| Neisseria |
a genus of bacteria of the family Neisseriaceae, consisting of gram-negative, oxidase-positive cocci characteristically coffee beanshaped and paired. The organisms are aerobic or facultatively anaerobic and are part of the normal flora of the oropharynx, nasopharynx, and genitourinary tract. The genus includes the gonococcus, the several meningococcus types, pigmented forms occasionally associated with meningitis, and a number of saprophytic or parasitic but nonpathogenic species.
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| Neisseriaceae |
a family of gram-negative, aerobic cocci and rod-shaped bacteria occurring singly or in pairs, short chains, or masses. The organisms are parasitic or saprophytic, and some produce pigment. The family includes four genera: Acinetobacter, Kingella, Moraxella, and Neisseria.
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