A eromonas hydrophila, a motile Gram-negative bacterium, has been only rarely reported as the cause of human disease. The organism was previously thought to be an opportunistic pathogen of low virulence often associated with polymicrobic infections and infections in debilitated patients, particularly those with neoplasms.1 More recent reports describe an increasing incidence of serious diseases resulting from primary infection with A hydrophila. These include septicemia, osteomyelitis, necrotizing myositis, endocarditis, meningitis, and wound infections.2,3
Although skin and soft-tissue infections caused by Aeromonas sp rank second in frequency only to gastrointestinal tract infections, they are not well recognized and reported in the dermatology literature. Cutaneous manifestations may be accompanied by fever, malaise, and leukocytosis and include cellulitis, pustular eruptions, furunculosis, wound abscesses,3 gas gangrene, and extensive ecthyma gangrenosum-like lesions, the latter occurring in patients with underlying malignant neoplasms. A few reports of primary wound infections describe intense local muscle
Young DF, Barr RJ. Aeromonas hydrophila Infection of the Skin. Arch Dermatol. 1981;117(4):244. doi:10.1001/archderm.1981.01650040060025
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