Does Eikenella grow on MacConkey?

Does Eikenella grow on MacConkey?

corrodens is non-motile, strains that corrode the agar produce a “twitching” motility. Colonies have a characteristic odour, described as smelling musty or resembling the smell of crackers, hypochlorite bleach, or mouse cages. E. Corrodens does not grow on MacConkey agar.

What antibiotics treat Eikenella?

Among the oral antibiotics, penicillin, tetracycline, and chloramphenicol are generally effective, whereas cephalexin, dicloxacillin and their relatives are not. Cefoxitin and the third-generation cephalosporins are highly effective against Eikenella.

What is Eikenella infection?

Eikenella corrodens is a commensal of the human mouth and upper respiratory tract. It is an unusual cause of infection and when it is cultured, it is most usually found mixed with other organisms.

What does Eikenella Corrodens cause?

In adults, Eikenella species have been shown to cause head and neck infection, sinusitis, pulmonary infection, arthritis, endocarditis, intraabdominal infection, pancreatic abscesses, skull infection, vertebral osteomyelitis, and infection after human bite wounds [2–12].

Does Eikenella grow on blood agar?

The invasive strain forms on the surface of blood agar when conditions are 36 °C, with 15% CO2 and 100% humidity. Colony diameter ranges from 0.2 mm to 0.5 mm (after 24 h culture) or from 0.5 mm to 1.0 mm (after 48 h culture).

How do I know if I have Eikenella?

Eikenella corrodens is a small straight rod that can appear coccobacillary. The organism is oxidase-positive and ornithine decarboxylase-positive, reduces nitrates to nitrites, but does not produce catalase, urease, or indole.

Does doxycycline cover Eikenella?

Conclusions: Patients with infections secondary to E. corrodens and/or A. odontolyticus in whom penicillin allergy is a concern can be treated effectively with doxycycline.

Do all dogs have C Canimorsus?

Between 26-74% of dogs and 18-57% of cats may carry C. canimorsus in their mouths. The bacterium rarely causes illness in pets, even if they are bitten by another animal.

What percentage of human bites get infected?

It is estimated that 250,000 human bites occur each year in the United States; up to 25 percent of these injuries become infected [1,2].

Is Eikenella Corrodens motile?

Eikenella corrodens is a fastidious, facultative anerobic, non-motile, gram-negative bacilli that is part of the normal flora of the mouth and upper respiratory tract.