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Acinetobacter, Stenotrophomonas, and Similar Organisms : Pathogenesis and Spectrum of Disease

المؤلف:  Patricia M. Tille, PhD, MLS(ASCP)

المصدر:  Bailey & Scotts Diagnostic Microbiology

الجزء والصفحة:  13th Edition , p329-330

2026-05-14

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 All of the organisms listed in Table 1 are opportunistic pathogens for which no definitive virulence factors are known. Because Acinetobacter spp. and S. maltophilia are relatively common colonizers of hospitalized patients, their clinical significance when found in patient specimens can be difficult to establish. In fact, these organisms are more frequently isolated as colonizers than as infecting agents. When infection does occur, it usually is seen in debilitated patients, such as those in burn or intensive care units and those who have undergone medical instrumentation and/or have received multiple antimicrobial agents. Acinetobacter baumannii is typically the species identified in hospital-acquired infections. Infections caused by Acinetobacter spp. and S. maltophilia usually involve the respiratory or genitourinary tract, bacteremia and, occasionally, wound infections, although infections involving several other body sites have been described. Community-acquired infections with these organisms can occur, but the vast majority of infections are nosocomial.

Table1. Pathogenesis and Spectrum of Diseases