Ewingella spp

Gram Stain

• Gram negative bacilli - fermenter

Clinical Significance

These organisms are found in the environment including foods and water.

They have been associated with respiratory tract infections, wound infections, peritonitis, conjunctivitis, septic arthritis and osteomyelitis, and bacteremia/sepsis in hospitalized patients.

Usual Susceptibility Pattern

These organisms produce a chromosomal extended spectrum beta-lactamase (ESBL) and should be considered resistant to all penicillins and cephalosporins.