| [etiology, epidemiology and microbiological diagnosis of intra-abdominal infections]. | intra-abdominal infections (iais) are commonly encountered in clinical practice. the etiology of these infections, often polymicrobial in nature, can be variable and usually includes organisms derived from the gut microbiota. in community-acquired iais enterobacteria predominate (mostly escherichia coli) in combination with anaerobes (mostly bacteroides fragilis). in nosocomial iais, which can complicate abdominal surgery, other pathogens can also play a role, such as pseudomonas aeruginosa, aci ... | 2008 | 18382147 |