Klebsiella pneumoniae
Klebsiella oxytoca
Large moist colonies due to large mucoid polysaccharide capsule (K antigen) that protects from phagocytosis and aids in adherence
Non-motile (no H antigen)
LPS with O antigens and endotoxin activity (Lipid A)
Enterotoxin: similar to ST and LT and plasmid mediated
Clinical Syndromes:
Primary pneumonia when underlying medical problems are evident (e.g., alcoholism)
Urinary tract and wound infections
- Bacteremia and meningitis
Diarrhea by enterotoxigenic strains
Treatment: cephalosporins
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