Corynebacterium infections
corynebacterium infections are gram-positive, catalase-positive, aerobic or facultatively anaerobic, generally nonmotile rods. The genus is composed of the species Corynebacterium diphtheriae and the nondiphtherial corynebacteria, collectively referred to as diphtheroids. Nondiphtherial corynebacteria, originally thought to be mainly contaminants, recently have been recognized as pathogenic, especially in immunocompromised hosts.