Table 1.

Summary of gram-negative and gram-positive organisms studied, as well as their associated clinically-relevant infections.

Strain	Clinical Relevance
Gram-negative
E. coli	Diarrhea, urinary tract infections, respiratory illness.
P. aeruginosa	Ear infections, skin rashes, eye infections, nosocomial (hospital acquired) infections.
K. pneumoniae	Sepsis, wound or surgical site infections, meningitis, and pneumonia. Nosocomial infections.
A. baumannii	Sepsis, wound or surgical site infections, and pneumonia. Nosocomial infections.
S. typhimurium	Gastrointestinal distress: diarrhea, abdominal cramps, and fever.
E. cloacae	Urinary tract, lower respiratory tract, skin and soft-tissue infections.
P. mirabilis	Catheter-associated urinary tract infections in sensitive populations. Nosocomial infections.
Gram-negative
S. aureus	Sepsis, pneumonia, endocarditis, and osteomyelitis. Nosocomial infections.
E. faecalis	Urinary and intra-abdominal infections, bacteremia, and endocarditis.
S. epidermidis	Device-associated infections. Nosocomial infections.
L. monocytogenes	Gastrointestinal distress, diarrhea, and fever.
M. marinum	Septic arthritis, osteomyelitis, disseminated skin lesions, and bacteremia.
www.cdc.gov