MeSH definition : A genus of gram-negative, aerobic, rod-shaped bacteria whose organisms are part of
the normal flora of the mucous membranes of the upper respiratory tract. Some species
are pathogenic for man.;
MeSH annotation : bacterium of upper resp mucous membranes; infection: coord IM with NEISSERIACEAE INFECTIONS
(IM);
A genus of gram-negative, aerobic, rod-shaped bacteria whose organisms are part of
the normal flora of the mucous membranes of the upper respiratory tract. Some species
are pathogenic for man.