From the Guidelines
Yes, Escherichia coli (E. coli) is a gram-negative bacillus.
Characteristics of E. coli
- E. coli is a type of Enterobacteriaceae, a family of gram-negative bacteria 1, 2, 3, 1
- It is a facultative and aerobic organism, meaning it can live with or without oxygen 1, 2, 3
- E. coli is commonly found in the human gut and can cause infections in various parts of the body, including the abdomen 1, 2, 3, 1
Prevalence of E. coli in Infections
- E. coli is one of the most common pathogens isolated from intra-abdominal infections, particularly those derived from the colon 1, 2, 3, 1
- It is often found in combination with other bacteria, such as anaerobes like Bacteroides fragilis 1, 2, 3, 1
Antibiotic Resistance
- E. coli has developed resistance to various antibiotics, including ampicillin/sulbactam, fluoroquinolones, and extended-spectrum beta-lactamases 1
- The choice of antibiotic therapy should be based on local microbiologic data, cost, allergies, and formulary availability 1
From the Research
Characteristics of Escherichia coli
- Escherichia coli (E. coli) is classified as a gram-negative bacillus 4, 5
- It is a rod-shaped bacterium in the family Enterobacteriaceae 5
- E. coli is a facultative, anaerobic Gram-negative rod 6
Classification and Identification
- E. coli can be differentiated from other gram-negative bacteria using PCR-based tests 7
- The assay employs primers derived from the nucleotide sequences flanking the gene encoding the universal stress protein (uspA) 7