Clinical and Epidemiological Characteristics of <i>Staphylococcus caprae</i> Infections in Catalonia, Spain
2025
Javier Díez de los Ríos | María Navarro | Judit Serra-Pladevall | Sònia Molinos | Emma Puigoriol | Noemi Párraga-Niño | Glòria Pedemonte-Parramón | Luisa Pedro-Botet | Óscar Mascaró | Esteban Reynaga
<i>Staphylococcus caprae</i> is a coagulase-negative staphylococcus commonly associated with animals which can also be a zoonotic human pathogen. To date, there is little data available on <i>S. caprae</i> infections. The aim of this study was to characterize the <i>S. caprae</i> infections identified in two hospitals located, respectively, in rural and urban areas of Catalonia, Spain. In this retrospective, observational study, data were compiled from clinical records of all <i>S. caprae</i> infections diagnosed between January 2010 and December 2023. Over the study period, altogether 31 cases of <i>S. caprae</i> infection were identified, with most (23) of these cases occurring in the second half of the period (2017–2023). The mean age of patients was 58.87 ± 20.65 years, and 58.1% were males. Eight patients had had livestock exposure. The most frequent manifestation of infection was skin and soft subcutaneous tissue infections (10; 32.3%), osteomyelitis (6; 19.4%), and joint prosthetic infections (5; 16.1%). All the strains were susceptible to oxacillin, fluoroquinolones, rifampicin, and trimethoprim–sulfamethoxazole. Twenty-two (71%) of the patients required surgical treatment. Only one patient (3.2%) died, because of aortic prosthetic valve infective endocarditis. Skin and soft tissue infections were the most frequently identified manifestations of <i>S. caprae</i> infection. Over 75% of the cases occurred in the last six years, and 25.8% involved significant exposure to livestock. Ongoing surveillance is necessary to better understand the prevalence and transmission dynamics of this emerging zoonotic pathogen.
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