Cedecea

Cedecea is a genus of Gram-negative bacteria in the family Enterobacteriaceae. This genus is known for its association with human infections, although it is relatively rare. The genus was first described in 1981 and includes several species.

Characteristics

Cedecea species are facultative anaerobes, meaning they can grow in both the presence and absence of oxygen. They are rod-shaped and motile due to the presence of flagella. These bacteria are oxidase-negative and catalase-positive. They are also known for their resistance to certain antibiotics, which can complicate treatment.

Species

The genus Cedecea includes the following species:

• Cedecea davisae
• Cedecea lapagei
• Cedecea neteri
• Cedecea davisae is the type species of the genus.

Clinical Significance

Cedecea species have been isolated from various clinical specimens, including blood, sputum, and wounds. They are opportunistic pathogens, primarily affecting immunocompromised individuals. Infections can range from bacteremia to pneumonia and wound infections.

Identification

Identification of Cedecea species in the laboratory involves biochemical tests and molecular methods. They can be distinguished from other members of the Enterobacteriaceae family by their unique biochemical profiles and resistance patterns.

Treatment

Treatment of infections caused by Cedecea species can be challenging due to their intrinsic resistance to multiple antibiotics, including beta-lactams and aminoglycosides. Empirical therapy often involves the use of broad-spectrum antibiotics until susceptibility results are available.

Related Pages

• Enterobacteriaceae
• Gram-negative bacteria
• Opportunistic infection
• Antibiotic resistance