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Fulminant arterial vasculitis as an unusual complication of disseminated staphylococcal disease due to the emerging CC1 methicillin-susceptible Staphylococcus aureus clone: a case report

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BMC INFECTIOUS DISEASES
卷 19, 期 -, 页码 -

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BMC
DOI: 10.1186/s12879-019-3933-3

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S; aureus; Sepsis; Vasculitis; Virulence; Genetic susceptibility; Polymorphism; Case report

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BackgroundStaphylococcus aureus has emerged as a leading cause of invasive severe diseases with a high rate of morbidity and mortality worldwide. The wide spectrum of clinical manifestations and outcome observed in staphylococcal illness may be a consequence of both microbial factors and variability of the host immune response.Case presentationA 14-years old child developed limb ischemia with gangrene following S. aureus bloodstream infection. Histopathology revealed medium-sized arterial vasculitis. The causing strain belonged to the emerging clone CC1-MSSA and numerous pathogenesis-related genes were identified. Patient's genotyping revealed functional variants associated with severe infections. A combination of virulence and host factors might explain this unique severe form of staphylococcal disease.ConclusionA combination of virulence and genetic host factors might explain this unique severe form of staphylococcal disease.

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