Is Eikenella normal respiratory flora?
Eikenella corrodens is a slow-growing, facultatively anaerobic, gram-negative bacillus. It is part of the normal flora of the human upper respiratory tract.
What causes Eikenella?
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].
Is Eikenella indole positive?
It tests negative for catalase, urease, arginine dehydrogenase, and indole, but is positive for nitrate reduction, as well as oxidase and lysine decarboxylase.
Does Eikenella grow on MacConkey Agar?
E. Corrodens does not grow on MacConkey agar. Generally, the organism is biochemically inactive, lacking oxidative and fermentative capabilities and failing to produce urease, indole or hydrogen sulfide (h2S).
Does clindamycin cover Eikenella?
Eikenella corrodens is generally susceptible to the following antimicrobial agents: penicillin, ampicillin, or amoxicillin; most second- and third-generation cephalosporins; ureidopenicillins; tetracyclines; and fluoroquinolones. Clindamycin, macrolides, metronidazole, and the aminoglycosides are not effective agents.
Does Eikenella grow on MacConkey?
How long does it take for a foot infection to heal?
Most people recover within 2 weeks, but it may take longer if the symptoms are severe. A doctor may prescribe a low-dose oral antibiotic for a person to take long term to help prevent a reoccurrence.
Why do I keep getting foot infections?
Bacteria can get into a wound, such as a cut or a skin crack, and cause an infection. Athlete’s foot and toenail fungus are also common fungal foot infections. Certain medical conditions, such as diabetes mellitus and ingrown toenails, can also increase your risk for foot infections.
Where is Eikenella found?
Eikenella corrodens, a facultative anaerobic, slow-growing, gram-negative rod, is frequently implicated in fight–bite injury infections and has been found in 10–29% of human bite wounds.
How many species of Eikenella are there?
The genus Eikenella contains only 1 species, E. corrodens, which belongs to the family Neisseriaceae along with the genera Neisseria and Kingella.1–4 E. corrodens is a small, straight rod that can appear coccobacillary.
What is the difference between class Neisseriaceae and Eikenella?
Class Neisseriaceae are strictly aerobic and grow chiefly in pairs (i.e., diplococci) or small clusters. Eikenella corrodens is a normal inhabitant of the mouth, but can produce a bacteremia if mechanically forced into the blood stream (e.g., chewing bite). It can also act opportunistically in diabetics and immunocompromised individuals.
Is Eikenella a serious pathogen in children and adolescents?
In conclusion, this review shows that Eikenella species is a serious pathogen in children and adolescents. This is especially true when there is an exposure to human oral secretions. Coinfection with other organisms is common.
How do you identify Eikenella isolates?
Isolates of Eikenella species were identified as a slow-growing, gram-negative, nonmotile, facultative rod that grew well on blood agar in 5% carbon dioxide. The characteristic pitting of the agar, greenish discoloration around the colonies, and a musty or bleach-like odor helped our laboratory identify this organism.