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We describe a case of necrotizing fasciitis in the United Kingdom in which Pseudomonas guariconensis was isolated from multiple blood culture and tissue samples. The organism carried a Verona integron-encoded metallo-ß-lactamase gene and evidence of decreased susceptibility to ß-lactam antimicrobial agents. Clinicians should use caution when treating infection caused by this rare pathogen.

Fasciitis, Necrotizing , Pseudomonas Infections , Humans , Pseudomonas aeruginosa/genetics , Pseudomonas Infections/diagnosis , Pseudomonas Infections/drug therapy , Pseudomonas Infections/epidemiology , Fasciitis, Necrotizing/diagnosis , Fasciitis, Necrotizing/drug therapy , Fasciitis, Necrotizing/epidemiology , beta-Lactamases/genetics , beta-Lactamases/metabolism , Anti-Bacterial Agents/therapeutic use , Integrons , United Kingdom/epidemiology , Microbial Sensitivity Tests

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